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| 1 /* | |
| 2 * Copyright (c) 2011 The LibYuv project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #include "third_party/libyuv/include/libyuv/scale.h" | |
| 12 | |
| 13 #include <assert.h> | |
| 14 #include <string.h> | |
| 15 | |
| 16 #include "third_party/libyuv/include/libyuv/cpu_id.h" | |
| 17 #include "third_party/libyuv/source/row.h" | |
| 18 | |
| 19 #ifdef __cplusplus | |
| 20 namespace libyuv { | |
| 21 extern "C" { | |
| 22 #endif | |
| 23 | |
| 24 /* | |
| 25 * Note: Defining YUV_DISABLE_ASM allows to use c version. | |
| 26 */ | |
| 27 //#define YUV_DISABLE_ASM | |
| 28 | |
| 29 #if defined(_MSC_VER) | |
| 30 #define ALIGN16(var) __declspec(align(16)) var | |
| 31 #else | |
| 32 #define ALIGN16(var) var __attribute__((aligned(16))) | |
| 33 #endif | |
| 34 | |
| 35 // Note: A Neon reference manual | |
| 36 // http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0204j/CJAJIIGG
.html | |
| 37 // Note: Some SSE2 reference manuals | |
| 38 // cpuvol1.pdf agner_instruction_tables.pdf 253666.pdf 253667.pdf | |
| 39 | |
| 40 // Set the following flag to true to revert to only | |
| 41 // using the reference implementation ScalePlaneBox(), and | |
| 42 // NOT the optimized versions. Useful for debugging and | |
| 43 // when comparing the quality of the resulting YUV planes | |
| 44 // as produced by the optimized and non-optimized versions. | |
| 45 | |
| 46 static int use_reference_impl_ = 0; | |
| 47 | |
| 48 void SetUseReferenceImpl(int use) { | |
| 49 use_reference_impl_ = use; | |
| 50 } | |
| 51 | |
| 52 // ScaleRowDown2Int also used by planar functions | |
| 53 | |
| 54 /** | |
| 55 * NEON downscalers with interpolation. | |
| 56 * | |
| 57 * Provided by Fritz Koenig | |
| 58 * | |
| 59 */ | |
| 60 | |
| 61 #if defined(__ARM_NEON__) && !defined(YUV_DISABLE_ASM) | |
| 62 #define HAS_SCALEROWDOWN2_NEON | |
| 63 void ScaleRowDown2_NEON(const uint8* src_ptr, int src_stride, | |
| 64 uint8* dst, int dst_width) { | |
| 65 asm volatile ( | |
| 66 "1: \n" | |
| 67 "vld2.u8 {q0,q1}, [%0]! \n" // load even pixels into q0,
odd into q1 | |
| 68 "vst1.u8 {q0}, [%1]! \n" // store even pixels | |
| 69 "subs %2, %2, #16 \n" // 16 processed per loop | |
| 70 "bhi 1b \n" | |
| 71 : "+r"(src_ptr), // %0 | |
| 72 "+r"(dst), // %1 | |
| 73 "+r"(dst_width) // %2 | |
| 74 : | |
| 75 : "q0", "q1" // Clobber List | |
| 76 ); | |
| 77 } | |
| 78 | |
| 79 void ScaleRowDown2Int_NEON(const uint8* src_ptr, int src_stride, | |
| 80 uint8* dst, int dst_width) { | |
| 81 asm volatile ( | |
| 82 "add %1, %0 \n" // change the stride to row
2 pointer | |
| 83 "1: \n" | |
| 84 "vld1.u8 {q0,q1}, [%0]! \n" // load row 1 and post incre
ment | |
| 85 "vld1.u8 {q2,q3}, [%1]! \n" // load row 2 and post incre
ment | |
| 86 "vpaddl.u8 q0, q0 \n" // row 1 add adjacent | |
| 87 "vpaddl.u8 q1, q1 \n" | |
| 88 "vpadal.u8 q0, q2 \n" // row 2 add adjacent, add r
ow 1 to row 2 | |
| 89 "vpadal.u8 q1, q3 \n" | |
| 90 "vrshrn.u16 d0, q0, #2 \n" // downshift, round and pack | |
| 91 "vrshrn.u16 d1, q1, #2 \n" | |
| 92 "vst1.u8 {q0}, [%2]! \n" | |
| 93 "subs %3, %3, #16 \n" // 16 processed per loop | |
| 94 "bhi 1b \n" | |
| 95 : "+r"(src_ptr), // %0 | |
| 96 "+r"(src_stride), // %1 | |
| 97 "+r"(dst), // %2 | |
| 98 "+r"(dst_width) // %3 | |
| 99 : | |
| 100 : "q0", "q1", "q2", "q3" // Clobber List | |
| 101 ); | |
| 102 } | |
| 103 | |
| 104 #define HAS_SCALEROWDOWN4_NEON | |
| 105 static void ScaleRowDown4_NEON(const uint8* src_ptr, int src_stride, | |
| 106 uint8* dst_ptr, int dst_width) { | |
| 107 asm volatile ( | |
| 108 "1: \n" | |
| 109 "vld2.u8 {d0, d1}, [%0]! \n" | |
| 110 "vtrn.u8 d1, d0 \n" | |
| 111 "vshrn.u16 d0, q0, #8 \n" | |
| 112 "vst1.u32 {d0[1]}, [%1]! \n" | |
| 113 | |
| 114 "subs %2, #4 \n" | |
| 115 "bhi 1b \n" | |
| 116 : "+r"(src_ptr), // %0 | |
| 117 "+r"(dst_ptr), // %1 | |
| 118 "+r"(dst_width) // %2 | |
| 119 : | |
| 120 : "q0", "q1", "memory", "cc" | |
| 121 ); | |
| 122 } | |
| 123 | |
| 124 static void ScaleRowDown4Int_NEON(const uint8* src_ptr, int src_stride, | |
| 125 uint8* dst_ptr, int dst_width) { | |
| 126 asm volatile ( | |
| 127 "add r4, %0, %3 \n" | |
| 128 "add r5, r4, %3 \n" | |
| 129 "add %3, r5, %3 \n" | |
| 130 "1: \n" | |
| 131 "vld1.u8 {q0}, [%0]! \n" // load up 16x4 block of in
put data | |
| 132 "vld1.u8 {q1}, [r4]! \n" | |
| 133 "vld1.u8 {q2}, [r5]! \n" | |
| 134 "vld1.u8 {q3}, [%3]! \n" | |
| 135 | |
| 136 "vpaddl.u8 q0, q0 \n" | |
| 137 "vpadal.u8 q0, q1 \n" | |
| 138 "vpadal.u8 q0, q2 \n" | |
| 139 "vpadal.u8 q0, q3 \n" | |
| 140 | |
| 141 "vpaddl.u16 q0, q0 \n" | |
| 142 | |
| 143 "vrshrn.u32 d0, q0, #4 \n" // divide by 16 w/rounding | |
| 144 | |
| 145 "vmovn.u16 d0, q0 \n" | |
| 146 "vst1.u32 {d0[0]}, [%1]! \n" | |
| 147 | |
| 148 "subs %2, #4 \n" | |
| 149 "bhi 1b \n" | |
| 150 | |
| 151 : "+r"(src_ptr), // %0 | |
| 152 "+r"(dst_ptr), // %1 | |
| 153 "+r"(dst_width) // %2 | |
| 154 : "r"(src_stride) // %3 | |
| 155 : "r4", "r5", "q0", "q1", "q2", "q3", "memory", "cc" | |
| 156 ); | |
| 157 } | |
| 158 | |
| 159 #define HAS_SCALEROWDOWN34_NEON | |
| 160 // Down scale from 4 to 3 pixels. Use the neon multilane read/write | |
| 161 // to load up the every 4th pixel into a 4 different registers. | |
| 162 // Point samples 32 pixels to 24 pixels. | |
| 163 static void ScaleRowDown34_NEON(const uint8* src_ptr, int src_stride, | |
| 164 uint8* dst_ptr, int dst_width) { | |
| 165 asm volatile ( | |
| 166 "1: \n" | |
| 167 "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 | |
| 168 "vmov d2, d3 \n" // order needs to be d0, d1,
d2 | |
| 169 "vst3.u8 {d0, d1, d2}, [%1]! \n" | |
| 170 "subs %2, #24 \n" | |
| 171 "bhi 1b \n" | |
| 172 : "+r"(src_ptr), // %0 | |
| 173 "+r"(dst_ptr), // %1 | |
| 174 "+r"(dst_width) // %2 | |
| 175 : | |
| 176 : "d0", "d1", "d2", "d3", "memory", "cc" | |
| 177 ); | |
| 178 } | |
| 179 | |
| 180 static void ScaleRowDown34_0_Int_NEON(const uint8* src_ptr, int src_stride, | |
| 181 uint8* dst_ptr, int dst_width) { | |
| 182 asm volatile ( | |
| 183 "vmov.u8 d24, #3 \n" | |
| 184 "add %3, %0 \n" | |
| 185 "1: \n" | |
| 186 "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 | |
| 187 "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" // src line 1 | |
| 188 | |
| 189 // filter src line 0 with src line 1 | |
| 190 // expand chars to shorts to allow for room | |
| 191 // when adding lines together | |
| 192 "vmovl.u8 q8, d4 \n" | |
| 193 "vmovl.u8 q9, d5 \n" | |
| 194 "vmovl.u8 q10, d6 \n" | |
| 195 "vmovl.u8 q11, d7 \n" | |
| 196 | |
| 197 // 3 * line_0 + line_1 | |
| 198 "vmlal.u8 q8, d0, d24 \n" | |
| 199 "vmlal.u8 q9, d1, d24 \n" | |
| 200 "vmlal.u8 q10, d2, d24 \n" | |
| 201 "vmlal.u8 q11, d3, d24 \n" | |
| 202 | |
| 203 // (3 * line_0 + line_1) >> 2 | |
| 204 "vqrshrn.u16 d0, q8, #2 \n" | |
| 205 "vqrshrn.u16 d1, q9, #2 \n" | |
| 206 "vqrshrn.u16 d2, q10, #2 \n" | |
| 207 "vqrshrn.u16 d3, q11, #2 \n" | |
| 208 | |
| 209 // a0 = (src[0] * 3 + s[1] * 1) >> 2 | |
| 210 "vmovl.u8 q8, d1 \n" | |
| 211 "vmlal.u8 q8, d0, d24 \n" | |
| 212 "vqrshrn.u16 d0, q8, #2 \n" | |
| 213 | |
| 214 // a1 = (src[1] * 1 + s[2] * 1) >> 1 | |
| 215 "vrhadd.u8 d1, d1, d2 \n" | |
| 216 | |
| 217 // a2 = (src[2] * 1 + s[3] * 3) >> 2 | |
| 218 "vmovl.u8 q8, d2 \n" | |
| 219 "vmlal.u8 q8, d3, d24 \n" | |
| 220 "vqrshrn.u16 d2, q8, #2 \n" | |
| 221 | |
| 222 "vst3.u8 {d0, d1, d2}, [%1]! \n" | |
| 223 | |
| 224 "subs %2, #24 \n" | |
| 225 "bhi 1b \n" | |
| 226 : "+r"(src_ptr), // %0 | |
| 227 "+r"(dst_ptr), // %1 | |
| 228 "+r"(dst_width), // %2 | |
| 229 "+r"(src_stride) // %3 | |
| 230 : | |
| 231 : "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11", "d24", "memory", "cc" | |
| 232 ); | |
| 233 } | |
| 234 | |
| 235 static void ScaleRowDown34_1_Int_NEON(const uint8* src_ptr, int src_stride, | |
| 236 uint8* dst_ptr, int dst_width) { | |
| 237 asm volatile ( | |
| 238 "vmov.u8 d24, #3 \n" | |
| 239 "add %3, %0 \n" | |
| 240 "1: \n" | |
| 241 "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" // src line 0 | |
| 242 "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" // src line 1 | |
| 243 | |
| 244 // average src line 0 with src line 1 | |
| 245 "vrhadd.u8 q0, q0, q2 \n" | |
| 246 "vrhadd.u8 q1, q1, q3 \n" | |
| 247 | |
| 248 // a0 = (src[0] * 3 + s[1] * 1) >> 2 | |
| 249 "vmovl.u8 q3, d1 \n" | |
| 250 "vmlal.u8 q3, d0, d24 \n" | |
| 251 "vqrshrn.u16 d0, q3, #2 \n" | |
| 252 | |
| 253 // a1 = (src[1] * 1 + s[2] * 1) >> 1 | |
| 254 "vrhadd.u8 d1, d1, d2 \n" | |
| 255 | |
| 256 // a2 = (src[2] * 1 + s[3] * 3) >> 2 | |
| 257 "vmovl.u8 q3, d2 \n" | |
| 258 "vmlal.u8 q3, d3, d24 \n" | |
| 259 "vqrshrn.u16 d2, q3, #2 \n" | |
| 260 | |
| 261 "vst3.u8 {d0, d1, d2}, [%1]! \n" | |
| 262 | |
| 263 "subs %2, #24 \n" | |
| 264 "bhi 1b \n" | |
| 265 : "+r"(src_ptr), // %0 | |
| 266 "+r"(dst_ptr), // %1 | |
| 267 "+r"(dst_width), // %2 | |
| 268 "+r"(src_stride) // %3 | |
| 269 : | |
| 270 : "r4", "q0", "q1", "q2", "q3", "d24", "memory", "cc" | |
| 271 ); | |
| 272 } | |
| 273 | |
| 274 #define HAS_SCALEROWDOWN38_NEON | |
| 275 const uint8 shuf38[16] __attribute__ ((aligned(16))) = | |
| 276 { 0, 3, 6, 8, 11, 14, 16, 19, 22, 24, 27, 30, 0, 0, 0, 0 }; | |
| 277 const uint8 shuf38_2[16] __attribute__ ((aligned(16))) = | |
| 278 { 0, 8, 16, 2, 10, 17, 4, 12, 18, 6, 14, 19, 0, 0, 0, 0 }; | |
| 279 const unsigned short mult38_div6[8] __attribute__ ((aligned(16))) = | |
| 280 { 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12, | |
| 281 65536 / 12, 65536 / 12, 65536 / 12, 65536 / 12 }; | |
| 282 const unsigned short mult38_div9[8] __attribute__ ((aligned(16))) = | |
| 283 { 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18, | |
| 284 65536 / 18, 65536 / 18, 65536 / 18, 65536 / 18 }; | |
| 285 | |
| 286 // 32 -> 12 | |
| 287 static void ScaleRowDown38_NEON(const uint8* src_ptr, int src_stride, | |
| 288 uint8* dst_ptr, int dst_width) { | |
| 289 asm volatile ( | |
| 290 "vld1.u8 {q3}, [%3] \n" | |
| 291 "1: \n" | |
| 292 "vld1.u8 {d0, d1, d2, d3}, [%0]! \n" | |
| 293 "vtbl.u8 d4, {d0, d1, d2, d3}, d6 \n" | |
| 294 "vtbl.u8 d5, {d0, d1, d2, d3}, d7 \n" | |
| 295 "vst1.u8 {d4}, [%1]! \n" | |
| 296 "vst1.u32 {d5[0]}, [%1]! \n" | |
| 297 "subs %2, #12 \n" | |
| 298 "bhi 1b \n" | |
| 299 : "+r"(src_ptr), // %0 | |
| 300 "+r"(dst_ptr), // %1 | |
| 301 "+r"(dst_width) // %2 | |
| 302 : "r"(shuf38) // %3 | |
| 303 : "d0", "d1", "d2", "d3", "d4", "d5", "memory", "cc" | |
| 304 ); | |
| 305 } | |
| 306 | |
| 307 // 32x3 -> 12x1 | |
| 308 static void ScaleRowDown38_3_Int_NEON(const uint8* src_ptr, int src_stride, | |
| 309 uint8* dst_ptr, int dst_width) { | |
| 310 asm volatile ( | |
| 311 "vld1.u16 {q13}, [%4] \n" | |
| 312 "vld1.u8 {q14}, [%5] \n" | |
| 313 "vld1.u8 {q15}, [%6] \n" | |
| 314 "add r4, %0, %3, lsl #1 \n" | |
| 315 "add %3, %0 \n" | |
| 316 "1: \n" | |
| 317 | |
| 318 // d0 = 00 40 01 41 02 42 03 43 | |
| 319 // d1 = 10 50 11 51 12 52 13 53 | |
| 320 // d2 = 20 60 21 61 22 62 23 63 | |
| 321 // d3 = 30 70 31 71 32 72 33 73 | |
| 322 "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" | |
| 323 "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" | |
| 324 "vld4.u8 {d16, d17, d18, d19}, [r4]! \n" | |
| 325 | |
| 326 // Shuffle the input data around to get align the data | |
| 327 // so adjacent data can be added. 0,1 - 2,3 - 4,5 - 6,7 | |
| 328 // d0 = 00 10 01 11 02 12 03 13 | |
| 329 // d1 = 40 50 41 51 42 52 43 53 | |
| 330 "vtrn.u8 d0, d1 \n" | |
| 331 "vtrn.u8 d4, d5 \n" | |
| 332 "vtrn.u8 d16, d17 \n" | |
| 333 | |
| 334 // d2 = 20 30 21 31 22 32 23 33 | |
| 335 // d3 = 60 70 61 71 62 72 63 73 | |
| 336 "vtrn.u8 d2, d3 \n" | |
| 337 "vtrn.u8 d6, d7 \n" | |
| 338 "vtrn.u8 d18, d19 \n" | |
| 339 | |
| 340 // d0 = 00+10 01+11 02+12 03+13 | |
| 341 // d2 = 40+50 41+51 42+52 43+53 | |
| 342 "vpaddl.u8 q0, q0 \n" | |
| 343 "vpaddl.u8 q2, q2 \n" | |
| 344 "vpaddl.u8 q8, q8 \n" | |
| 345 | |
| 346 // d3 = 60+70 61+71 62+72 63+73 | |
| 347 "vpaddl.u8 d3, d3 \n" | |
| 348 "vpaddl.u8 d7, d7 \n" | |
| 349 "vpaddl.u8 d19, d19 \n" | |
| 350 | |
| 351 // combine source lines | |
| 352 "vadd.u16 q0, q2 \n" | |
| 353 "vadd.u16 q0, q8 \n" | |
| 354 "vadd.u16 d4, d3, d7 \n" | |
| 355 "vadd.u16 d4, d19 \n" | |
| 356 | |
| 357 // dst_ptr[3] = (s[6 + st * 0] + s[7 + st * 0] | |
| 358 // + s[6 + st * 1] + s[7 + st * 1] | |
| 359 // + s[6 + st * 2] + s[7 + st * 2]) / 6 | |
| 360 "vqrdmulh.s16 q2, q13 \n" | |
| 361 "vmovn.u16 d4, q2 \n" | |
| 362 | |
| 363 // Shuffle 2,3 reg around so that 2 can be added to the | |
| 364 // 0,1 reg and 3 can be added to the 4,5 reg. This | |
| 365 // requires expanding from u8 to u16 as the 0,1 and 4,5 | |
| 366 // registers are already expanded. Then do transposes | |
| 367 // to get aligned. | |
| 368 // q2 = xx 20 xx 30 xx 21 xx 31 xx 22 xx 32 xx 23 xx 33 | |
| 369 "vmovl.u8 q1, d2 \n" | |
| 370 "vmovl.u8 q3, d6 \n" | |
| 371 "vmovl.u8 q9, d18 \n" | |
| 372 | |
| 373 // combine source lines | |
| 374 "vadd.u16 q1, q3 \n" | |
| 375 "vadd.u16 q1, q9 \n" | |
| 376 | |
| 377 // d4 = xx 20 xx 30 xx 22 xx 32 | |
| 378 // d5 = xx 21 xx 31 xx 23 xx 33 | |
| 379 "vtrn.u32 d2, d3 \n" | |
| 380 | |
| 381 // d4 = xx 20 xx 21 xx 22 xx 23 | |
| 382 // d5 = xx 30 xx 31 xx 32 xx 33 | |
| 383 "vtrn.u16 d2, d3 \n" | |
| 384 | |
| 385 // 0+1+2, 3+4+5 | |
| 386 "vadd.u16 q0, q1 \n" | |
| 387 | |
| 388 // Need to divide, but can't downshift as the the value | |
| 389 // isn't a power of 2. So multiply by 65536 / n | |
| 390 // and take the upper 16 bits. | |
| 391 "vqrdmulh.s16 q0, q15 \n" | |
| 392 | |
| 393 // Align for table lookup, vtbl requires registers to | |
| 394 // be adjacent | |
| 395 "vmov.u8 d2, d4 \n" | |
| 396 | |
| 397 "vtbl.u8 d3, {d0, d1, d2}, d28 \n" | |
| 398 "vtbl.u8 d4, {d0, d1, d2}, d29 \n" | |
| 399 | |
| 400 "vst1.u8 {d3}, [%1]! \n" | |
| 401 "vst1.u32 {d4[0]}, [%1]! \n" | |
| 402 "subs %2, #12 \n" | |
| 403 "bhi 1b \n" | |
| 404 : "+r"(src_ptr), // %0 | |
| 405 "+r"(dst_ptr), // %1 | |
| 406 "+r"(dst_width), // %2 | |
| 407 "+r"(src_stride) // %3 | |
| 408 : "r"(mult38_div6), // %4 | |
| 409 "r"(shuf38_2), // %5 | |
| 410 "r"(mult38_div9) // %6 | |
| 411 : "r4", "q0", "q1", "q2", "q3", "q8", "q9", | |
| 412 "q13", "q14", "q15", "memory", "cc" | |
| 413 ); | |
| 414 } | |
| 415 | |
| 416 // 32x2 -> 12x1 | |
| 417 static void ScaleRowDown38_2_Int_NEON(const uint8* src_ptr, int src_stride, | |
| 418 uint8* dst_ptr, int dst_width) { | |
| 419 asm volatile ( | |
| 420 "vld1.u16 {q13}, [%4] \n" | |
| 421 "vld1.u8 {q14}, [%5] \n" | |
| 422 "add %3, %0 \n" | |
| 423 "1: \n" | |
| 424 | |
| 425 // d0 = 00 40 01 41 02 42 03 43 | |
| 426 // d1 = 10 50 11 51 12 52 13 53 | |
| 427 // d2 = 20 60 21 61 22 62 23 63 | |
| 428 // d3 = 30 70 31 71 32 72 33 73 | |
| 429 "vld4.u8 {d0, d1, d2, d3}, [%0]! \n" | |
| 430 "vld4.u8 {d4, d5, d6, d7}, [%3]! \n" | |
| 431 | |
| 432 // Shuffle the input data around to get align the data | |
| 433 // so adjacent data can be added. 0,1 - 2,3 - 4,5 - 6,7 | |
| 434 // d0 = 00 10 01 11 02 12 03 13 | |
| 435 // d1 = 40 50 41 51 42 52 43 53 | |
| 436 "vtrn.u8 d0, d1 \n" | |
| 437 "vtrn.u8 d4, d5 \n" | |
| 438 | |
| 439 // d2 = 20 30 21 31 22 32 23 33 | |
| 440 // d3 = 60 70 61 71 62 72 63 73 | |
| 441 "vtrn.u8 d2, d3 \n" | |
| 442 "vtrn.u8 d6, d7 \n" | |
| 443 | |
| 444 // d0 = 00+10 01+11 02+12 03+13 | |
| 445 // d2 = 40+50 41+51 42+52 43+53 | |
| 446 "vpaddl.u8 q0, q0 \n" | |
| 447 "vpaddl.u8 q2, q2 \n" | |
| 448 | |
| 449 // d3 = 60+70 61+71 62+72 63+73 | |
| 450 "vpaddl.u8 d3, d3 \n" | |
| 451 "vpaddl.u8 d7, d7 \n" | |
| 452 | |
| 453 // combine source lines | |
| 454 "vadd.u16 q0, q2 \n" | |
| 455 "vadd.u16 d4, d3, d7 \n" | |
| 456 | |
| 457 // dst_ptr[3] = (s[6] + s[7] + s[6+st] + s[7+st]) / 4 | |
| 458 "vqrshrn.u16 d4, q2, #2 \n" | |
| 459 | |
| 460 // Shuffle 2,3 reg around so that 2 can be added to the | |
| 461 // 0,1 reg and 3 can be added to the 4,5 reg. This | |
| 462 // requires expanding from u8 to u16 as the 0,1 and 4,5 | |
| 463 // registers are already expanded. Then do transposes | |
| 464 // to get aligned. | |
| 465 // q2 = xx 20 xx 30 xx 21 xx 31 xx 22 xx 32 xx 23 xx 33 | |
| 466 "vmovl.u8 q1, d2 \n" | |
| 467 "vmovl.u8 q3, d6 \n" | |
| 468 | |
| 469 // combine source lines | |
| 470 "vadd.u16 q1, q3 \n" | |
| 471 | |
| 472 // d4 = xx 20 xx 30 xx 22 xx 32 | |
| 473 // d5 = xx 21 xx 31 xx 23 xx 33 | |
| 474 "vtrn.u32 d2, d3 \n" | |
| 475 | |
| 476 // d4 = xx 20 xx 21 xx 22 xx 23 | |
| 477 // d5 = xx 30 xx 31 xx 32 xx 33 | |
| 478 "vtrn.u16 d2, d3 \n" | |
| 479 | |
| 480 // 0+1+2, 3+4+5 | |
| 481 "vadd.u16 q0, q1 \n" | |
| 482 | |
| 483 // Need to divide, but can't downshift as the the value | |
| 484 // isn't a power of 2. So multiply by 65536 / n | |
| 485 // and take the upper 16 bits. | |
| 486 "vqrdmulh.s16 q0, q13 \n" | |
| 487 | |
| 488 // Align for table lookup, vtbl requires registers to | |
| 489 // be adjacent | |
| 490 "vmov.u8 d2, d4 \n" | |
| 491 | |
| 492 "vtbl.u8 d3, {d0, d1, d2}, d28 \n" | |
| 493 "vtbl.u8 d4, {d0, d1, d2}, d29 \n" | |
| 494 | |
| 495 "vst1.u8 {d3}, [%1]! \n" | |
| 496 "vst1.u32 {d4[0]}, [%1]! \n" | |
| 497 "subs %2, #12 \n" | |
| 498 "bhi 1b \n" | |
| 499 : "+r"(src_ptr), // %0 | |
| 500 "+r"(dst_ptr), // %1 | |
| 501 "+r"(dst_width), // %2 | |
| 502 "+r"(src_stride) // %3 | |
| 503 : "r"(mult38_div6), // %4 | |
| 504 "r"(shuf38_2) // %5 | |
| 505 : "q0", "q1", "q2", "q3", "q13", "q14", "memory", "cc" | |
| 506 ); | |
| 507 } | |
| 508 | |
| 509 /** | |
| 510 * SSE2 downscalers with interpolation. | |
| 511 * | |
| 512 * Provided by Frank Barchard (fbarchard@google.com) | |
| 513 * | |
| 514 */ | |
| 515 | |
| 516 // Constants for SSE2 code | |
| 517 #elif (defined(_M_IX86) || defined(__i386__) || defined(__x86_64__)) && \ | |
| 518 !defined(YUV_DISABLE_ASM) | |
| 519 #if defined(_MSC_VER) | |
| 520 #define TALIGN16(t, var) __declspec(align(16)) t _ ## var | |
| 521 #elif (defined(__APPLE__) || defined(__MINGW32__) || defined(__CYGWIN__)) && def
ined(__i386__) | |
| 522 #define TALIGN16(t, var) t var __attribute__((aligned(16))) | |
| 523 #else | |
| 524 #define TALIGN16(t, var) t _ ## var __attribute__((aligned(16))) | |
| 525 #endif | |
| 526 | |
| 527 #if (defined(__APPLE__) || defined(__MINGW32__) || defined(__CYGWIN__)) && \ | |
| 528 defined(__i386__) | |
| 529 #define DECLARE_FUNCTION(name) \ | |
| 530 ".text \n" \ | |
| 531 ".globl _" #name " \n" \ | |
| 532 "_" #name ": \n" | |
| 533 #else | |
| 534 #define DECLARE_FUNCTION(name) \ | |
| 535 ".text \n" \ | |
| 536 ".global " #name " \n" \ | |
| 537 #name ": \n" | |
| 538 #endif | |
| 539 | |
| 540 | |
| 541 // Offsets for source bytes 0 to 9 | |
| 542 //extern "C" | |
| 543 TALIGN16(const uint8, shuf0[16]) = | |
| 544 { 0, 1, 3, 4, 5, 7, 8, 9, 128, 128, 128, 128, 128, 128, 128, 128 }; | |
| 545 | |
| 546 // Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12. | |
| 547 //extern "C" | |
| 548 TALIGN16(const uint8, shuf1[16]) = | |
| 549 { 3, 4, 5, 7, 8, 9, 11, 12, 128, 128, 128, 128, 128, 128, 128, 128 }; | |
| 550 | |
| 551 // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. | |
| 552 //extern "C" | |
| 553 TALIGN16(const uint8, shuf2[16]) = | |
| 554 { 5, 7, 8, 9, 11, 12, 13, 15, 128, 128, 128, 128, 128, 128, 128, 128 }; | |
| 555 | |
| 556 // Offsets for source bytes 0 to 10 | |
| 557 //extern "C" | |
| 558 TALIGN16(const uint8, shuf01[16]) = | |
| 559 { 0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10 }; | |
| 560 | |
| 561 // Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13. | |
| 562 //extern "C" | |
| 563 TALIGN16(const uint8, shuf11[16]) = | |
| 564 { 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13 }; | |
| 565 | |
| 566 // Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31. | |
| 567 //extern "C" | |
| 568 TALIGN16(const uint8, shuf21[16]) = | |
| 569 { 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15 }; | |
| 570 | |
| 571 // Coefficients for source bytes 0 to 10 | |
| 572 //extern "C" | |
| 573 TALIGN16(const uint8, madd01[16]) = | |
| 574 { 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2 }; | |
| 575 | |
| 576 // Coefficients for source bytes 10 to 21 | |
| 577 //extern "C" | |
| 578 TALIGN16(const uint8, madd11[16]) = | |
| 579 { 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1 }; | |
| 580 | |
| 581 // Coefficients for source bytes 21 to 31 | |
| 582 //extern "C" | |
| 583 TALIGN16(const uint8, madd21[16]) = | |
| 584 { 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3 }; | |
| 585 | |
| 586 // Coefficients for source bytes 21 to 31 | |
| 587 //extern "C" | |
| 588 TALIGN16(const int16, round34[8]) = | |
| 589 { 2, 2, 2, 2, 2, 2, 2, 2 }; | |
| 590 | |
| 591 //extern "C" | |
| 592 TALIGN16(const uint8, shuf38a[16]) = | |
| 593 { 0, 3, 6, 8, 11, 14, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }; | |
| 594 | |
| 595 //extern "C" | |
| 596 TALIGN16(const uint8, shuf38b[16]) = | |
| 597 { 128, 128, 128, 128, 128, 128, 0, 3, 6, 8, 11, 14, 128, 128, 128, 128 }; | |
| 598 | |
| 599 // Arrange words 0,3,6 into 0,1,2 | |
| 600 //extern "C" | |
| 601 TALIGN16(const uint8, shufac0[16]) = | |
| 602 { 0, 1, 6, 7, 12, 13, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }; | |
| 603 | |
| 604 // Arrange words 0,3,6 into 3,4,5 | |
| 605 //extern "C" | |
| 606 TALIGN16(const uint8, shufac3[16]) = | |
| 607 { 128, 128, 128, 128, 128, 128, 0, 1, 6, 7, 12, 13, 128, 128, 128, 128 }; | |
| 608 | |
| 609 // Scaling values for boxes of 3x3 and 2x3 | |
| 610 //extern "C" | |
| 611 TALIGN16(const uint16, scaleac3[8]) = | |
| 612 { 65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9, 65536 / 9, 65536 / 6, 0, 0 }; | |
| 613 | |
| 614 // Arrange first value for pixels 0,1,2,3,4,5 | |
| 615 //extern "C" | |
| 616 TALIGN16(const uint8, shufab0[16]) = | |
| 617 { 0, 128, 3, 128, 6, 128, 8, 128, 11, 128, 14, 128, 128, 128, 128, 128 }; | |
| 618 | |
| 619 // Arrange second value for pixels 0,1,2,3,4,5 | |
| 620 //extern "C" | |
| 621 TALIGN16(const uint8, shufab1[16]) = | |
| 622 { 1, 128, 4, 128, 7, 128, 9, 128, 12, 128, 15, 128, 128, 128, 128, 128 }; | |
| 623 | |
| 624 // Arrange third value for pixels 0,1,2,3,4,5 | |
| 625 //extern "C" | |
| 626 TALIGN16(const uint8, shufab2[16]) = | |
| 627 { 2, 128, 5, 128, 128, 128, 10, 128, 13, 128, 128, 128, 128, 128, 128, 128 }; | |
| 628 | |
| 629 // Scaling values for boxes of 3x2 and 2x2 | |
| 630 //extern "C" | |
| 631 TALIGN16(const uint16, scaleab2[8]) = | |
| 632 { 65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3, 65536 / 3, 65536 / 2, 0, 0 }; | |
| 633 #endif | |
| 634 | |
| 635 #if defined(_M_IX86) && !defined(YUV_DISABLE_ASM) && defined(_MSC_VER) | |
| 636 | |
| 637 #define HAS_SCALEROWDOWN2_SSE2 | |
| 638 // Reads 32 pixels, throws half away and writes 16 pixels. | |
| 639 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 16 byte aligned. | |
| 640 __declspec(naked) | |
| 641 static void ScaleRowDown2_SSE2(const uint8* src_ptr, int src_stride, | |
| 642 uint8* dst_ptr, int dst_width) { | |
| 643 __asm { | |
| 644 mov eax, [esp + 4] // src_ptr | |
| 645 // src_stride ignored | |
| 646 mov edx, [esp + 12] // dst_ptr | |
| 647 mov ecx, [esp + 16] // dst_width | |
| 648 pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff | |
| 649 psrlw xmm5, 8 | |
| 650 | |
| 651 wloop: | |
| 652 movdqa xmm0, [eax] | |
| 653 movdqa xmm1, [eax + 16] | |
| 654 lea eax, [eax + 32] | |
| 655 pand xmm0, xmm5 | |
| 656 pand xmm1, xmm5 | |
| 657 packuswb xmm0, xmm1 | |
| 658 movdqa [edx], xmm0 | |
| 659 lea edx, [edx + 16] | |
| 660 sub ecx, 16 | |
| 661 ja wloop | |
| 662 | |
| 663 ret | |
| 664 } | |
| 665 } | |
| 666 // Blends 32x2 rectangle to 16x1. | |
| 667 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 16 byte aligned. | |
| 668 __declspec(naked) | |
| 669 void ScaleRowDown2Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 670 uint8* dst_ptr, int dst_width) { | |
| 671 __asm { | |
| 672 push esi | |
| 673 mov eax, [esp + 4 + 4] // src_ptr | |
| 674 mov esi, [esp + 4 + 8] // src_stride | |
| 675 mov edx, [esp + 4 + 12] // dst_ptr | |
| 676 mov ecx, [esp + 4 + 16] // dst_width | |
| 677 pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff | |
| 678 psrlw xmm5, 8 | |
| 679 | |
| 680 wloop: | |
| 681 movdqa xmm0, [eax] | |
| 682 movdqa xmm1, [eax + 16] | |
| 683 movdqa xmm2, [eax + esi] | |
| 684 movdqa xmm3, [eax + esi + 16] | |
| 685 lea eax, [eax + 32] | |
| 686 pavgb xmm0, xmm2 // average rows | |
| 687 pavgb xmm1, xmm3 | |
| 688 | |
| 689 movdqa xmm2, xmm0 // average columns (32 to 16 pixels) | |
| 690 psrlw xmm0, 8 | |
| 691 movdqa xmm3, xmm1 | |
| 692 psrlw xmm1, 8 | |
| 693 pand xmm2, xmm5 | |
| 694 pand xmm3, xmm5 | |
| 695 pavgw xmm0, xmm2 | |
| 696 pavgw xmm1, xmm3 | |
| 697 packuswb xmm0, xmm1 | |
| 698 | |
| 699 movdqa [edx], xmm0 | |
| 700 lea edx, [edx + 16] | |
| 701 sub ecx, 16 | |
| 702 ja wloop | |
| 703 | |
| 704 pop esi | |
| 705 ret | |
| 706 } | |
| 707 } | |
| 708 | |
| 709 #define HAS_SCALEROWDOWN4_SSE2 | |
| 710 // Point samples 32 pixels to 8 pixels. | |
| 711 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 712 __declspec(naked) | |
| 713 static void ScaleRowDown4_SSE2(const uint8* src_ptr, int src_stride, | |
| 714 uint8* dst_ptr, int dst_width) { | |
| 715 __asm { | |
| 716 pushad | |
| 717 mov esi, [esp + 32 + 4] // src_ptr | |
| 718 // src_stride ignored | |
| 719 mov edi, [esp + 32 + 12] // dst_ptr | |
| 720 mov ecx, [esp + 32 + 16] // dst_width | |
| 721 pcmpeqb xmm5, xmm5 // generate mask 0x000000ff | |
| 722 psrld xmm5, 24 | |
| 723 | |
| 724 wloop: | |
| 725 movdqa xmm0, [esi] | |
| 726 movdqa xmm1, [esi + 16] | |
| 727 lea esi, [esi + 32] | |
| 728 pand xmm0, xmm5 | |
| 729 pand xmm1, xmm5 | |
| 730 packuswb xmm0, xmm1 | |
| 731 packuswb xmm0, xmm0 | |
| 732 movq qword ptr [edi], xmm0 | |
| 733 lea edi, [edi + 8] | |
| 734 sub ecx, 8 | |
| 735 ja wloop | |
| 736 | |
| 737 popad | |
| 738 ret | |
| 739 } | |
| 740 } | |
| 741 | |
| 742 // Blends 32x4 rectangle to 8x1. | |
| 743 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 744 __declspec(naked) | |
| 745 static void ScaleRowDown4Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 746 uint8* dst_ptr, int dst_width) { | |
| 747 __asm { | |
| 748 pushad | |
| 749 mov esi, [esp + 32 + 4] // src_ptr | |
| 750 mov ebx, [esp + 32 + 8] // src_stride | |
| 751 mov edi, [esp + 32 + 12] // dst_ptr | |
| 752 mov ecx, [esp + 32 + 16] // dst_width | |
| 753 pcmpeqb xmm7, xmm7 // generate mask 0x00ff00ff | |
| 754 psrlw xmm7, 8 | |
| 755 lea edx, [ebx + ebx * 2] // src_stride * 3 | |
| 756 | |
| 757 wloop: | |
| 758 movdqa xmm0, [esi] | |
| 759 movdqa xmm1, [esi + 16] | |
| 760 movdqa xmm2, [esi + ebx] | |
| 761 movdqa xmm3, [esi + ebx + 16] | |
| 762 pavgb xmm0, xmm2 // average rows | |
| 763 pavgb xmm1, xmm3 | |
| 764 movdqa xmm2, [esi + ebx * 2] | |
| 765 movdqa xmm3, [esi + ebx * 2 + 16] | |
| 766 movdqa xmm4, [esi + edx] | |
| 767 movdqa xmm5, [esi + edx + 16] | |
| 768 lea esi, [esi + 32] | |
| 769 pavgb xmm2, xmm4 | |
| 770 pavgb xmm3, xmm5 | |
| 771 pavgb xmm0, xmm2 | |
| 772 pavgb xmm1, xmm3 | |
| 773 | |
| 774 movdqa xmm2, xmm0 // average columns (32 to 16 pixels) | |
| 775 psrlw xmm0, 8 | |
| 776 movdqa xmm3, xmm1 | |
| 777 psrlw xmm1, 8 | |
| 778 pand xmm2, xmm7 | |
| 779 pand xmm3, xmm7 | |
| 780 pavgw xmm0, xmm2 | |
| 781 pavgw xmm1, xmm3 | |
| 782 packuswb xmm0, xmm1 | |
| 783 | |
| 784 movdqa xmm2, xmm0 // average columns (16 to 8 pixels) | |
| 785 psrlw xmm0, 8 | |
| 786 pand xmm2, xmm7 | |
| 787 pavgw xmm0, xmm2 | |
| 788 packuswb xmm0, xmm0 | |
| 789 | |
| 790 movq qword ptr [edi], xmm0 | |
| 791 lea edi, [edi + 8] | |
| 792 sub ecx, 8 | |
| 793 ja wloop | |
| 794 | |
| 795 popad | |
| 796 ret | |
| 797 } | |
| 798 } | |
| 799 | |
| 800 #define HAS_SCALEROWDOWN8_SSE2 | |
| 801 // Point samples 32 pixels to 4 pixels. | |
| 802 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 4 byte aligned. | |
| 803 __declspec(naked) | |
| 804 static void ScaleRowDown8_SSE2(const uint8* src_ptr, int src_stride, | |
| 805 uint8* dst_ptr, int dst_width) { | |
| 806 __asm { | |
| 807 pushad | |
| 808 mov esi, [esp + 32 + 4] // src_ptr | |
| 809 // src_stride ignored | |
| 810 mov edi, [esp + 32 + 12] // dst_ptr | |
| 811 mov ecx, [esp + 32 + 16] // dst_width | |
| 812 pcmpeqb xmm5, xmm5 // generate mask isolating 1 src 8 bytes | |
| 813 psrlq xmm5, 56 | |
| 814 | |
| 815 wloop: | |
| 816 movdqa xmm0, [esi] | |
| 817 movdqa xmm1, [esi + 16] | |
| 818 lea esi, [esi + 32] | |
| 819 pand xmm0, xmm5 | |
| 820 pand xmm1, xmm5 | |
| 821 packuswb xmm0, xmm1 // 32->16 | |
| 822 packuswb xmm0, xmm0 // 16->8 | |
| 823 packuswb xmm0, xmm0 // 8->4 | |
| 824 movd dword ptr [edi], xmm0 | |
| 825 lea edi, [edi + 4] | |
| 826 sub ecx, 4 | |
| 827 ja wloop | |
| 828 | |
| 829 popad | |
| 830 ret | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 // Blends 32x8 rectangle to 4x1. | |
| 835 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 4 byte aligned. | |
| 836 __declspec(naked) | |
| 837 static void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 838 uint8* dst_ptr, int dst_width) { | |
| 839 __asm { | |
| 840 pushad | |
| 841 mov esi, [esp + 32 + 4] // src_ptr | |
| 842 mov ebx, [esp + 32 + 8] // src_stride | |
| 843 mov edi, [esp + 32 + 12] // dst_ptr | |
| 844 mov ecx, [esp + 32 + 16] // dst_width | |
| 845 lea edx, [ebx + ebx * 2] // src_stride * 3 | |
| 846 pxor xmm7, xmm7 | |
| 847 | |
| 848 wloop: | |
| 849 movdqa xmm0, [esi] // average 8 rows to 1 | |
| 850 movdqa xmm1, [esi + 16] | |
| 851 movdqa xmm2, [esi + ebx] | |
| 852 movdqa xmm3, [esi + ebx + 16] | |
| 853 pavgb xmm0, xmm2 | |
| 854 pavgb xmm1, xmm3 | |
| 855 movdqa xmm2, [esi + ebx * 2] | |
| 856 movdqa xmm3, [esi + ebx * 2 + 16] | |
| 857 movdqa xmm4, [esi + edx] | |
| 858 movdqa xmm5, [esi + edx + 16] | |
| 859 lea ebp, [esi + ebx * 4] | |
| 860 lea esi, [esi + 32] | |
| 861 pavgb xmm2, xmm4 | |
| 862 pavgb xmm3, xmm5 | |
| 863 pavgb xmm0, xmm2 | |
| 864 pavgb xmm1, xmm3 | |
| 865 | |
| 866 movdqa xmm2, [ebp] | |
| 867 movdqa xmm3, [ebp + 16] | |
| 868 movdqa xmm4, [ebp + ebx] | |
| 869 movdqa xmm5, [ebp + ebx + 16] | |
| 870 pavgb xmm2, xmm4 | |
| 871 pavgb xmm3, xmm5 | |
| 872 movdqa xmm4, [ebp + ebx * 2] | |
| 873 movdqa xmm5, [ebp + ebx * 2 + 16] | |
| 874 movdqa xmm6, [ebp + edx] | |
| 875 pavgb xmm4, xmm6 | |
| 876 movdqa xmm6, [ebp + edx + 16] | |
| 877 pavgb xmm5, xmm6 | |
| 878 pavgb xmm2, xmm4 | |
| 879 pavgb xmm3, xmm5 | |
| 880 pavgb xmm0, xmm2 | |
| 881 pavgb xmm1, xmm3 | |
| 882 | |
| 883 psadbw xmm0, xmm7 // average 32 pixels to 4 | |
| 884 psadbw xmm1, xmm7 | |
| 885 pshufd xmm0, xmm0, 0xd8 // x1x0 -> xx01 | |
| 886 pshufd xmm1, xmm1, 0x8d // x3x2 -> 32xx | |
| 887 por xmm0, xmm1 // -> 3201 | |
| 888 psrlw xmm0, 3 | |
| 889 packuswb xmm0, xmm0 | |
| 890 packuswb xmm0, xmm0 | |
| 891 movd dword ptr [edi], xmm0 | |
| 892 | |
| 893 lea edi, [edi + 4] | |
| 894 sub ecx, 4 | |
| 895 ja wloop | |
| 896 | |
| 897 popad | |
| 898 ret | |
| 899 } | |
| 900 } | |
| 901 | |
| 902 #define HAS_SCALEROWDOWN34_SSSE3 | |
| 903 // Point samples 32 pixels to 24 pixels. | |
| 904 // Produces three 8 byte values. For each 8 bytes, 16 bytes are read. | |
| 905 // Then shuffled to do the scaling. | |
| 906 | |
| 907 // Note that movdqa+palign may be better than movdqu. | |
| 908 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 909 __declspec(naked) | |
| 910 static void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, | |
| 911 uint8* dst_ptr, int dst_width) { | |
| 912 __asm { | |
| 913 pushad | |
| 914 mov esi, [esp + 32 + 4] // src_ptr | |
| 915 // src_stride ignored | |
| 916 mov edi, [esp + 32 + 12] // dst_ptr | |
| 917 mov ecx, [esp + 32 + 16] // dst_width | |
| 918 movdqa xmm3, _shuf0 | |
| 919 movdqa xmm4, _shuf1 | |
| 920 movdqa xmm5, _shuf2 | |
| 921 | |
| 922 wloop: | |
| 923 movdqa xmm0, [esi] | |
| 924 movdqa xmm1, [esi + 16] | |
| 925 lea esi, [esi + 32] | |
| 926 movdqa xmm2, xmm1 | |
| 927 palignr xmm1, xmm0, 8 | |
| 928 pshufb xmm0, xmm3 | |
| 929 pshufb xmm1, xmm4 | |
| 930 pshufb xmm2, xmm5 | |
| 931 movq qword ptr [edi], xmm0 | |
| 932 movq qword ptr [edi + 8], xmm1 | |
| 933 movq qword ptr [edi + 16], xmm2 | |
| 934 lea edi, [edi + 24] | |
| 935 sub ecx, 24 | |
| 936 ja wloop | |
| 937 | |
| 938 popad | |
| 939 ret | |
| 940 } | |
| 941 } | |
| 942 | |
| 943 // Blends 32x2 rectangle to 24x1 | |
| 944 // Produces three 8 byte values. For each 8 bytes, 16 bytes are read. | |
| 945 // Then shuffled to do the scaling. | |
| 946 | |
| 947 // Register usage: | |
| 948 // xmm0 src_row 0 | |
| 949 // xmm1 src_row 1 | |
| 950 // xmm2 shuf 0 | |
| 951 // xmm3 shuf 1 | |
| 952 // xmm4 shuf 2 | |
| 953 // xmm5 madd 0 | |
| 954 // xmm6 madd 1 | |
| 955 // xmm7 round34 | |
| 956 | |
| 957 // Note that movdqa+palign may be better than movdqu. | |
| 958 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 959 __declspec(naked) | |
| 960 static void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 961 uint8* dst_ptr, int dst_width) { | |
| 962 __asm { | |
| 963 pushad | |
| 964 mov esi, [esp + 32 + 4] // src_ptr | |
| 965 mov ebx, [esp + 32 + 8] // src_stride | |
| 966 mov edi, [esp + 32 + 12] // dst_ptr | |
| 967 mov ecx, [esp + 32 + 16] // dst_width | |
| 968 movdqa xmm2, _shuf01 | |
| 969 movdqa xmm3, _shuf11 | |
| 970 movdqa xmm4, _shuf21 | |
| 971 movdqa xmm5, _madd01 | |
| 972 movdqa xmm6, _madd11 | |
| 973 movdqa xmm7, _round34 | |
| 974 | |
| 975 wloop: | |
| 976 movdqa xmm0, [esi] // pixels 0..7 | |
| 977 movdqa xmm1, [esi+ebx] | |
| 978 pavgb xmm0, xmm1 | |
| 979 pshufb xmm0, xmm2 | |
| 980 pmaddubsw xmm0, xmm5 | |
| 981 paddsw xmm0, xmm7 | |
| 982 psrlw xmm0, 2 | |
| 983 packuswb xmm0, xmm0 | |
| 984 movq qword ptr [edi], xmm0 | |
| 985 movdqu xmm0, [esi+8] // pixels 8..15 | |
| 986 movdqu xmm1, [esi+ebx+8] | |
| 987 pavgb xmm0, xmm1 | |
| 988 pshufb xmm0, xmm3 | |
| 989 pmaddubsw xmm0, xmm6 | |
| 990 paddsw xmm0, xmm7 | |
| 991 psrlw xmm0, 2 | |
| 992 packuswb xmm0, xmm0 | |
| 993 movq qword ptr [edi+8], xmm0 | |
| 994 movdqa xmm0, [esi+16] // pixels 16..23 | |
| 995 movdqa xmm1, [esi+ebx+16] | |
| 996 lea esi, [esi+32] | |
| 997 pavgb xmm0, xmm1 | |
| 998 pshufb xmm0, xmm4 | |
| 999 movdqa xmm1, _madd21 | |
| 1000 pmaddubsw xmm0, xmm1 | |
| 1001 paddsw xmm0, xmm7 | |
| 1002 psrlw xmm0, 2 | |
| 1003 packuswb xmm0, xmm0 | |
| 1004 movq qword ptr [edi+16], xmm0 | |
| 1005 lea edi, [edi+24] | |
| 1006 sub ecx, 24 | |
| 1007 ja wloop | |
| 1008 | |
| 1009 popad | |
| 1010 ret | |
| 1011 } | |
| 1012 } | |
| 1013 | |
| 1014 // Note that movdqa+palign may be better than movdqu. | |
| 1015 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 1016 __declspec(naked) | |
| 1017 static void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1018 uint8* dst_ptr, int dst_width) { | |
| 1019 __asm { | |
| 1020 pushad | |
| 1021 mov esi, [esp + 32 + 4] // src_ptr | |
| 1022 mov ebx, [esp + 32 + 8] // src_stride | |
| 1023 mov edi, [esp + 32 + 12] // dst_ptr | |
| 1024 mov ecx, [esp + 32 + 16] // dst_width | |
| 1025 movdqa xmm2, _shuf01 | |
| 1026 movdqa xmm3, _shuf11 | |
| 1027 movdqa xmm4, _shuf21 | |
| 1028 movdqa xmm5, _madd01 | |
| 1029 movdqa xmm6, _madd11 | |
| 1030 movdqa xmm7, _round34 | |
| 1031 | |
| 1032 wloop: | |
| 1033 movdqa xmm0, [esi] // pixels 0..7 | |
| 1034 movdqa xmm1, [esi+ebx] | |
| 1035 pavgb xmm1, xmm0 | |
| 1036 pavgb xmm0, xmm1 | |
| 1037 pshufb xmm0, xmm2 | |
| 1038 pmaddubsw xmm0, xmm5 | |
| 1039 paddsw xmm0, xmm7 | |
| 1040 psrlw xmm0, 2 | |
| 1041 packuswb xmm0, xmm0 | |
| 1042 movq qword ptr [edi], xmm0 | |
| 1043 movdqu xmm0, [esi+8] // pixels 8..15 | |
| 1044 movdqu xmm1, [esi+ebx+8] | |
| 1045 pavgb xmm1, xmm0 | |
| 1046 pavgb xmm0, xmm1 | |
| 1047 pshufb xmm0, xmm3 | |
| 1048 pmaddubsw xmm0, xmm6 | |
| 1049 paddsw xmm0, xmm7 | |
| 1050 psrlw xmm0, 2 | |
| 1051 packuswb xmm0, xmm0 | |
| 1052 movq qword ptr [edi+8], xmm0 | |
| 1053 movdqa xmm0, [esi+16] // pixels 16..23 | |
| 1054 movdqa xmm1, [esi+ebx+16] | |
| 1055 lea esi, [esi+32] | |
| 1056 pavgb xmm1, xmm0 | |
| 1057 pavgb xmm0, xmm1 | |
| 1058 pshufb xmm0, xmm4 | |
| 1059 movdqa xmm1, _madd21 | |
| 1060 pmaddubsw xmm0, xmm1 | |
| 1061 paddsw xmm0, xmm7 | |
| 1062 psrlw xmm0, 2 | |
| 1063 packuswb xmm0, xmm0 | |
| 1064 movq qword ptr [edi+16], xmm0 | |
| 1065 lea edi, [edi+24] | |
| 1066 sub ecx, 24 | |
| 1067 ja wloop | |
| 1068 | |
| 1069 popad | |
| 1070 ret | |
| 1071 } | |
| 1072 } | |
| 1073 | |
| 1074 #define HAS_SCALEROWDOWN38_SSSE3 | |
| 1075 // 3/8 point sampler | |
| 1076 | |
| 1077 // Scale 32 pixels to 12 | |
| 1078 __declspec(naked) | |
| 1079 static void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1080 uint8* dst_ptr, int dst_width) { | |
| 1081 __asm { | |
| 1082 pushad | |
| 1083 mov esi, [esp + 32 + 4] // src_ptr | |
| 1084 mov edx, [esp + 32 + 8] // src_stride | |
| 1085 mov edi, [esp + 32 + 12] // dst_ptr | |
| 1086 mov ecx, [esp + 32 + 16] // dst_width | |
| 1087 movdqa xmm4, _shuf38a | |
| 1088 movdqa xmm5, _shuf38b | |
| 1089 | |
| 1090 xloop: | |
| 1091 movdqa xmm0, [esi] // 16 pixels -> 0,1,2,3,4,5 | |
| 1092 movdqa xmm1, [esi + 16] // 16 pixels -> 6,7,8,9,10,11 | |
| 1093 lea esi, [esi + 32] | |
| 1094 pshufb xmm0, xmm4 | |
| 1095 pshufb xmm1, xmm5 | |
| 1096 paddusb xmm0, xmm1 | |
| 1097 | |
| 1098 movq qword ptr [edi], xmm0 // write 12 pixels | |
| 1099 movhlps xmm1, xmm0 | |
| 1100 movd [edi + 8], xmm1 | |
| 1101 lea edi, [edi + 12] | |
| 1102 sub ecx, 12 | |
| 1103 ja xloop | |
| 1104 | |
| 1105 popad | |
| 1106 ret | |
| 1107 } | |
| 1108 } | |
| 1109 | |
| 1110 // Scale 16x3 pixels to 6x1 with interpolation | |
| 1111 __declspec(naked) | |
| 1112 static void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1113 uint8* dst_ptr, int dst_width) { | |
| 1114 __asm { | |
| 1115 pushad | |
| 1116 mov esi, [esp + 32 + 4] // src_ptr | |
| 1117 mov edx, [esp + 32 + 8] // src_stride | |
| 1118 mov edi, [esp + 32 + 12] // dst_ptr | |
| 1119 mov ecx, [esp + 32 + 16] // dst_width | |
| 1120 movdqa xmm4, _shufac0 | |
| 1121 movdqa xmm5, _shufac3 | |
| 1122 movdqa xmm6, _scaleac3 | |
| 1123 pxor xmm7, xmm7 | |
| 1124 | |
| 1125 xloop: | |
| 1126 movdqa xmm0, [esi] // sum up 3 rows into xmm0/1 | |
| 1127 movdqa xmm2, [esi + edx] | |
| 1128 movhlps xmm1, xmm0 | |
| 1129 movhlps xmm3, xmm2 | |
| 1130 punpcklbw xmm0, xmm7 | |
| 1131 punpcklbw xmm1, xmm7 | |
| 1132 punpcklbw xmm2, xmm7 | |
| 1133 punpcklbw xmm3, xmm7 | |
| 1134 paddusw xmm0, xmm2 | |
| 1135 paddusw xmm1, xmm3 | |
| 1136 movdqa xmm2, [esi + edx * 2] | |
| 1137 lea esi, [esi + 16] | |
| 1138 movhlps xmm3, xmm2 | |
| 1139 punpcklbw xmm2, xmm7 | |
| 1140 punpcklbw xmm3, xmm7 | |
| 1141 paddusw xmm0, xmm2 | |
| 1142 paddusw xmm1, xmm3 | |
| 1143 | |
| 1144 movdqa xmm2, xmm0 // 8 pixels -> 0,1,2 of xmm2 | |
| 1145 psrldq xmm0, 2 | |
| 1146 paddusw xmm2, xmm0 | |
| 1147 psrldq xmm0, 2 | |
| 1148 paddusw xmm2, xmm0 | |
| 1149 pshufb xmm2, xmm4 | |
| 1150 | |
| 1151 movdqa xmm3, xmm1 // 8 pixels -> 3,4,5 of xmm2 | |
| 1152 psrldq xmm1, 2 | |
| 1153 paddusw xmm3, xmm1 | |
| 1154 psrldq xmm1, 2 | |
| 1155 paddusw xmm3, xmm1 | |
| 1156 pshufb xmm3, xmm5 | |
| 1157 paddusw xmm2, xmm3 | |
| 1158 | |
| 1159 pmulhuw xmm2, xmm6 // divide by 9,9,6, 9,9,6 | |
| 1160 packuswb xmm2, xmm2 | |
| 1161 | |
| 1162 movd [edi], xmm2 // write 6 pixels | |
| 1163 pextrw eax, xmm2, 2 | |
| 1164 mov [edi + 4], ax | |
| 1165 lea edi, [edi + 6] | |
| 1166 sub ecx, 6 | |
| 1167 ja xloop | |
| 1168 | |
| 1169 popad | |
| 1170 ret | |
| 1171 } | |
| 1172 } | |
| 1173 | |
| 1174 // Scale 16x2 pixels to 6x1 with interpolation | |
| 1175 __declspec(naked) | |
| 1176 static void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1177 uint8* dst_ptr, int dst_width) { | |
| 1178 __asm { | |
| 1179 pushad | |
| 1180 mov esi, [esp + 32 + 4] // src_ptr | |
| 1181 mov edx, [esp + 32 + 8] // src_stride | |
| 1182 mov edi, [esp + 32 + 12] // dst_ptr | |
| 1183 mov ecx, [esp + 32 + 16] // dst_width | |
| 1184 movdqa xmm4, _shufab0 | |
| 1185 movdqa xmm5, _shufab1 | |
| 1186 movdqa xmm6, _shufab2 | |
| 1187 movdqa xmm7, _scaleab2 | |
| 1188 | |
| 1189 xloop: | |
| 1190 movdqa xmm2, [esi] // average 2 rows into xmm2 | |
| 1191 pavgb xmm2, [esi + edx] | |
| 1192 lea esi, [esi + 16] | |
| 1193 | |
| 1194 movdqa xmm0, xmm2 // 16 pixels -> 0,1,2,3,4,5 of xmm0 | |
| 1195 pshufb xmm0, xmm4 | |
| 1196 movdqa xmm1, xmm2 | |
| 1197 pshufb xmm1, xmm5 | |
| 1198 paddusw xmm0, xmm1 | |
| 1199 pshufb xmm2, xmm6 | |
| 1200 paddusw xmm0, xmm2 | |
| 1201 | |
| 1202 pmulhuw xmm0, xmm7 // divide by 3,3,2, 3,3,2 | |
| 1203 packuswb xmm0, xmm0 | |
| 1204 | |
| 1205 movd [edi], xmm0 // write 6 pixels | |
| 1206 pextrw eax, xmm0, 2 | |
| 1207 mov [edi + 4], ax | |
| 1208 lea edi, [edi + 6] | |
| 1209 sub ecx, 6 | |
| 1210 ja xloop | |
| 1211 | |
| 1212 popad | |
| 1213 ret | |
| 1214 } | |
| 1215 } | |
| 1216 | |
| 1217 #define HAS_SCALEADDROWS_SSE2 | |
| 1218 | |
| 1219 // Reads 8xN bytes and produces 16 shorts at a time. | |
| 1220 __declspec(naked) | |
| 1221 static void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, | |
| 1222 uint16* dst_ptr, int src_width, | |
| 1223 int src_height) { | |
| 1224 __asm { | |
| 1225 pushad | |
| 1226 mov esi, [esp + 32 + 4] // src_ptr | |
| 1227 mov edx, [esp + 32 + 8] // src_stride | |
| 1228 mov edi, [esp + 32 + 12] // dst_ptr | |
| 1229 mov ecx, [esp + 32 + 16] // dst_width | |
| 1230 mov ebx, [esp + 32 + 20] // height | |
| 1231 pxor xmm5, xmm5 | |
| 1232 dec ebx | |
| 1233 | |
| 1234 xloop: | |
| 1235 // first row | |
| 1236 movdqa xmm2, [esi] | |
| 1237 lea eax, [esi + edx] | |
| 1238 movhlps xmm3, xmm2 | |
| 1239 mov ebp, ebx | |
| 1240 punpcklbw xmm2, xmm5 | |
| 1241 punpcklbw xmm3, xmm5 | |
| 1242 | |
| 1243 // sum remaining rows | |
| 1244 yloop: | |
| 1245 movdqa xmm0, [eax] // read 16 pixels | |
| 1246 lea eax, [eax + edx] // advance to next row | |
| 1247 movhlps xmm1, xmm0 | |
| 1248 punpcklbw xmm0, xmm5 | |
| 1249 punpcklbw xmm1, xmm5 | |
| 1250 paddusw xmm2, xmm0 // sum 16 words | |
| 1251 paddusw xmm3, xmm1 | |
| 1252 sub ebp, 1 | |
| 1253 ja yloop | |
| 1254 | |
| 1255 movdqa [edi], xmm2 | |
| 1256 movdqa [edi + 16], xmm3 | |
| 1257 lea edi, [edi + 32] | |
| 1258 lea esi, [esi + 16] | |
| 1259 | |
| 1260 sub ecx, 16 | |
| 1261 ja xloop | |
| 1262 | |
| 1263 popad | |
| 1264 ret | |
| 1265 } | |
| 1266 } | |
| 1267 | |
| 1268 // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version. | |
| 1269 #define HAS_SCALEFILTERROWS_SSE2 | |
| 1270 __declspec(naked) | |
| 1271 static void ScaleFilterRows_SSE2(uint8* dst_ptr, const uint8* src_ptr, | |
| 1272 int src_stride, int dst_width, | |
| 1273 int source_y_fraction) { | |
| 1274 __asm { | |
| 1275 push esi | |
| 1276 push edi | |
| 1277 mov edi, [esp + 8 + 4] // dst_ptr | |
| 1278 mov esi, [esp + 8 + 8] // src_ptr | |
| 1279 mov edx, [esp + 8 + 12] // src_stride | |
| 1280 mov ecx, [esp + 8 + 16] // dst_width | |
| 1281 mov eax, [esp + 8 + 20] // source_y_fraction (0..255) | |
| 1282 cmp eax, 0 | |
| 1283 je xloop1 | |
| 1284 cmp eax, 128 | |
| 1285 je xloop2 | |
| 1286 | |
| 1287 movd xmm6, eax // xmm6 = y fraction | |
| 1288 punpcklwd xmm6, xmm6 | |
| 1289 pshufd xmm6, xmm6, 0 | |
| 1290 neg eax // xmm5 = 256 - y fraction | |
| 1291 add eax, 256 | |
| 1292 movd xmm5, eax | |
| 1293 punpcklwd xmm5, xmm5 | |
| 1294 pshufd xmm5, xmm5, 0 | |
| 1295 pxor xmm7, xmm7 | |
| 1296 | |
| 1297 xloop: | |
| 1298 movdqa xmm0, [esi] | |
| 1299 movdqa xmm2, [esi + edx] | |
| 1300 lea esi, [esi + 16] | |
| 1301 movdqa xmm1, xmm0 | |
| 1302 movdqa xmm3, xmm2 | |
| 1303 punpcklbw xmm0, xmm7 | |
| 1304 punpcklbw xmm2, xmm7 | |
| 1305 punpckhbw xmm1, xmm7 | |
| 1306 punpckhbw xmm3, xmm7 | |
| 1307 pmullw xmm0, xmm5 // scale row 0 | |
| 1308 pmullw xmm1, xmm5 | |
| 1309 pmullw xmm2, xmm6 // scale row 1 | |
| 1310 pmullw xmm3, xmm6 | |
| 1311 paddusw xmm0, xmm2 // sum rows | |
| 1312 paddusw xmm1, xmm3 | |
| 1313 psrlw xmm0, 8 | |
| 1314 psrlw xmm1, 8 | |
| 1315 packuswb xmm0, xmm1 | |
| 1316 movdqa [edi], xmm0 | |
| 1317 lea edi, [edi + 16] | |
| 1318 sub ecx, 16 | |
| 1319 ja xloop | |
| 1320 | |
| 1321 mov al, [edi - 1] | |
| 1322 mov [edi], al | |
| 1323 pop edi | |
| 1324 pop esi | |
| 1325 ret | |
| 1326 | |
| 1327 xloop1: | |
| 1328 movdqa xmm0, [esi] | |
| 1329 lea esi, [esi + 16] | |
| 1330 movdqa [edi], xmm0 | |
| 1331 lea edi, [edi + 16] | |
| 1332 sub ecx, 16 | |
| 1333 ja xloop1 | |
| 1334 | |
| 1335 mov al, [edi - 1] | |
| 1336 mov [edi], al | |
| 1337 pop edi | |
| 1338 pop esi | |
| 1339 ret | |
| 1340 | |
| 1341 xloop2: | |
| 1342 movdqa xmm0, [esi] | |
| 1343 movdqa xmm2, [esi + edx] | |
| 1344 lea esi, [esi + 16] | |
| 1345 pavgb xmm0, xmm2 | |
| 1346 movdqa [edi], xmm0 | |
| 1347 lea edi, [edi + 16] | |
| 1348 sub ecx, 16 | |
| 1349 ja xloop2 | |
| 1350 | |
| 1351 mov al, [edi - 1] | |
| 1352 mov [edi], al | |
| 1353 pop edi | |
| 1354 pop esi | |
| 1355 ret | |
| 1356 } | |
| 1357 } | |
| 1358 | |
| 1359 // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version. | |
| 1360 #define HAS_SCALEFILTERROWS_SSSE3 | |
| 1361 __declspec(naked) | |
| 1362 static void ScaleFilterRows_SSSE3(uint8* dst_ptr, const uint8* src_ptr, | |
| 1363 int src_stride, int dst_width, | |
| 1364 int source_y_fraction) { | |
| 1365 __asm { | |
| 1366 push esi | |
| 1367 push edi | |
| 1368 mov edi, [esp + 8 + 4] // dst_ptr | |
| 1369 mov esi, [esp + 8 + 8] // src_ptr | |
| 1370 mov edx, [esp + 8 + 12] // src_stride | |
| 1371 mov ecx, [esp + 8 + 16] // dst_width | |
| 1372 mov eax, [esp + 8 + 20] // source_y_fraction (0..255) | |
| 1373 shr eax, 1 | |
| 1374 cmp eax, 0 | |
| 1375 je xloop1 | |
| 1376 cmp eax, 64 | |
| 1377 je xloop2 | |
| 1378 | |
| 1379 mov ah,al | |
| 1380 neg al | |
| 1381 add al, 128 | |
| 1382 movd xmm5, eax | |
| 1383 punpcklwd xmm5, xmm5 | |
| 1384 pshufd xmm5, xmm5, 0 | |
| 1385 | |
| 1386 xloop: | |
| 1387 movdqa xmm0, [esi] | |
| 1388 movdqa xmm2, [esi + edx] | |
| 1389 lea esi, [esi + 16] | |
| 1390 movdqa xmm1, xmm0 | |
| 1391 punpcklbw xmm0, xmm2 | |
| 1392 punpckhbw xmm1, xmm2 | |
| 1393 pmaddubsw xmm0, xmm5 | |
| 1394 pmaddubsw xmm1, xmm5 | |
| 1395 psrlw xmm0, 7 | |
| 1396 psrlw xmm1, 7 | |
| 1397 packuswb xmm0, xmm1 | |
| 1398 movdqa [edi], xmm0 | |
| 1399 lea edi, [edi + 16] | |
| 1400 sub ecx, 16 | |
| 1401 ja xloop | |
| 1402 | |
| 1403 mov al, [edi - 1] | |
| 1404 mov [edi], al | |
| 1405 pop edi | |
| 1406 pop esi | |
| 1407 ret | |
| 1408 | |
| 1409 xloop1: | |
| 1410 movdqa xmm0, [esi] | |
| 1411 lea esi, [esi + 16] | |
| 1412 movdqa [edi], xmm0 | |
| 1413 lea edi, [edi + 16] | |
| 1414 sub ecx, 16 | |
| 1415 ja xloop1 | |
| 1416 | |
| 1417 mov al, [edi - 1] | |
| 1418 mov [edi], al | |
| 1419 pop edi | |
| 1420 pop esi | |
| 1421 ret | |
| 1422 | |
| 1423 xloop2: | |
| 1424 movdqa xmm0, [esi] | |
| 1425 movdqa xmm2, [esi + edx] | |
| 1426 lea esi, [esi + 16] | |
| 1427 pavgb xmm0, xmm2 | |
| 1428 movdqa [edi], xmm0 | |
| 1429 lea edi, [edi + 16] | |
| 1430 sub ecx, 16 | |
| 1431 ja xloop2 | |
| 1432 | |
| 1433 mov al, [edi - 1] | |
| 1434 mov [edi], al | |
| 1435 pop edi | |
| 1436 pop esi | |
| 1437 ret | |
| 1438 | |
| 1439 } | |
| 1440 } | |
| 1441 | |
| 1442 // Note that movdqa+palign may be better than movdqu. | |
| 1443 // Alignment requirement: src_ptr 16 byte aligned, dst_ptr 8 byte aligned. | |
| 1444 __declspec(naked) | |
| 1445 static void ScaleFilterCols34_SSSE3(uint8* dst_ptr, const uint8* src_ptr, | |
| 1446 int dst_width) { | |
| 1447 __asm { | |
| 1448 mov edx, [esp + 4] // dst_ptr | |
| 1449 mov eax, [esp + 8] // src_ptr | |
| 1450 mov ecx, [esp + 12] // dst_width | |
| 1451 movdqa xmm1, _round34 | |
| 1452 movdqa xmm2, _shuf01 | |
| 1453 movdqa xmm3, _shuf11 | |
| 1454 movdqa xmm4, _shuf21 | |
| 1455 movdqa xmm5, _madd01 | |
| 1456 movdqa xmm6, _madd11 | |
| 1457 movdqa xmm7, _madd21 | |
| 1458 | |
| 1459 wloop: | |
| 1460 movdqa xmm0, [eax] // pixels 0..7 | |
| 1461 pshufb xmm0, xmm2 | |
| 1462 pmaddubsw xmm0, xmm5 | |
| 1463 paddsw xmm0, xmm1 | |
| 1464 psrlw xmm0, 2 | |
| 1465 packuswb xmm0, xmm0 | |
| 1466 movq qword ptr [edx], xmm0 | |
| 1467 movdqu xmm0, [eax+8] // pixels 8..15 | |
| 1468 pshufb xmm0, xmm3 | |
| 1469 pmaddubsw xmm0, xmm6 | |
| 1470 paddsw xmm0, xmm1 | |
| 1471 psrlw xmm0, 2 | |
| 1472 packuswb xmm0, xmm0 | |
| 1473 movq qword ptr [edx+8], xmm0 | |
| 1474 movdqa xmm0, [eax+16] // pixels 16..23 | |
| 1475 lea eax, [eax+32] | |
| 1476 pshufb xmm0, xmm4 | |
| 1477 pmaddubsw xmm0, xmm7 | |
| 1478 paddsw xmm0, xmm1 | |
| 1479 psrlw xmm0, 2 | |
| 1480 packuswb xmm0, xmm0 | |
| 1481 movq qword ptr [edx+16], xmm0 | |
| 1482 lea edx, [edx+24] | |
| 1483 sub ecx, 24 | |
| 1484 ja wloop | |
| 1485 ret | |
| 1486 } | |
| 1487 } | |
| 1488 | |
| 1489 #elif (defined(__x86_64__) || defined(__i386__)) && !defined(YUV_DISABLE_ASM) | |
| 1490 | |
| 1491 // GCC versions of row functions are verbatim conversions from Visual C. | |
| 1492 // Generated using gcc disassembly on Visual C object file: | |
| 1493 // objdump -D yuvscaler.obj >yuvscaler.txt | |
| 1494 #define HAS_SCALEROWDOWN2_SSE2 | |
| 1495 static void ScaleRowDown2_SSE2(const uint8* src_ptr, int src_stride, | |
| 1496 uint8* dst_ptr, int dst_width) { | |
| 1497 asm volatile ( | |
| 1498 "pcmpeqb %%xmm5,%%xmm5 \n" | |
| 1499 "psrlw $0x8,%%xmm5 \n" | |
| 1500 "1:" | |
| 1501 "movdqa (%0),%%xmm0 \n" | |
| 1502 "movdqa 0x10(%0),%%xmm1 \n" | |
| 1503 "lea 0x20(%0),%0 \n" | |
| 1504 "pand %%xmm5,%%xmm0 \n" | |
| 1505 "pand %%xmm5,%%xmm1 \n" | |
| 1506 "packuswb %%xmm1,%%xmm0 \n" | |
| 1507 "movdqa %%xmm0,(%1) \n" | |
| 1508 "lea 0x10(%1),%1 \n" | |
| 1509 "sub $0x10,%2 \n" | |
| 1510 "ja 1b \n" | |
| 1511 : "+r"(src_ptr), // %0 | |
| 1512 "+r"(dst_ptr), // %1 | |
| 1513 "+r"(dst_width) // %2 | |
| 1514 : | |
| 1515 : "memory", "cc" | |
| 1516 ); | |
| 1517 } | |
| 1518 | |
| 1519 static void ScaleRowDown2Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 1520 uint8* dst_ptr, int dst_width) { | |
| 1521 asm volatile ( | |
| 1522 "pcmpeqb %%xmm5,%%xmm5 \n" | |
| 1523 "psrlw $0x8,%%xmm5 \n" | |
| 1524 "1:" | |
| 1525 "movdqa (%0),%%xmm0 \n" | |
| 1526 "movdqa 0x10(%0),%%xmm1 \n" | |
| 1527 "movdqa (%0,%3,1),%%xmm2 \n" | |
| 1528 "movdqa 0x10(%0,%3,1),%%xmm3 \n" | |
| 1529 "lea 0x20(%0),%0 \n" | |
| 1530 "pavgb %%xmm2,%%xmm0 \n" | |
| 1531 "pavgb %%xmm3,%%xmm1 \n" | |
| 1532 "movdqa %%xmm0,%%xmm2 \n" | |
| 1533 "psrlw $0x8,%%xmm0 \n" | |
| 1534 "movdqa %%xmm1,%%xmm3 \n" | |
| 1535 "psrlw $0x8,%%xmm1 \n" | |
| 1536 "pand %%xmm5,%%xmm2 \n" | |
| 1537 "pand %%xmm5,%%xmm3 \n" | |
| 1538 "pavgw %%xmm2,%%xmm0 \n" | |
| 1539 "pavgw %%xmm3,%%xmm1 \n" | |
| 1540 "packuswb %%xmm1,%%xmm0 \n" | |
| 1541 "movdqa %%xmm0,(%1) \n" | |
| 1542 "lea 0x10(%1),%1 \n" | |
| 1543 "sub $0x10,%2 \n" | |
| 1544 "ja 1b \n" | |
| 1545 : "+r"(src_ptr), // %0 | |
| 1546 "+r"(dst_ptr), // %1 | |
| 1547 "+r"(dst_width) // %2 | |
| 1548 : "r"((intptr_t)(src_stride)) // %3 | |
| 1549 : "memory", "cc" | |
| 1550 ); | |
| 1551 } | |
| 1552 | |
| 1553 #define HAS_SCALEROWDOWN4_SSE2 | |
| 1554 static void ScaleRowDown4_SSE2(const uint8* src_ptr, int src_stride, | |
| 1555 uint8* dst_ptr, int dst_width) { | |
| 1556 asm volatile ( | |
| 1557 "pcmpeqb %%xmm5,%%xmm5 \n" | |
| 1558 "psrld $0x18,%%xmm5 \n" | |
| 1559 "1:" | |
| 1560 "movdqa (%0),%%xmm0 \n" | |
| 1561 "movdqa 0x10(%0),%%xmm1 \n" | |
| 1562 "lea 0x20(%0),%0 \n" | |
| 1563 "pand %%xmm5,%%xmm0 \n" | |
| 1564 "pand %%xmm5,%%xmm1 \n" | |
| 1565 "packuswb %%xmm1,%%xmm0 \n" | |
| 1566 "packuswb %%xmm0,%%xmm0 \n" | |
| 1567 "movq %%xmm0,(%1) \n" | |
| 1568 "lea 0x8(%1),%1 \n" | |
| 1569 "sub $0x8,%2 \n" | |
| 1570 "ja 1b \n" | |
| 1571 : "+r"(src_ptr), // %0 | |
| 1572 "+r"(dst_ptr), // %1 | |
| 1573 "+r"(dst_width) // %2 | |
| 1574 : | |
| 1575 : "memory", "cc" | |
| 1576 ); | |
| 1577 } | |
| 1578 | |
| 1579 static void ScaleRowDown4Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 1580 uint8* dst_ptr, int dst_width) { | |
| 1581 intptr_t temp = 0; | |
| 1582 asm volatile ( | |
| 1583 "pcmpeqb %%xmm7,%%xmm7 \n" | |
| 1584 "psrlw $0x8,%%xmm7 \n" | |
| 1585 "lea (%4,%4,2),%3 \n" | |
| 1586 "1:" | |
| 1587 "movdqa (%0),%%xmm0 \n" | |
| 1588 "movdqa 0x10(%0),%%xmm1 \n" | |
| 1589 "movdqa (%0,%4,1),%%xmm2 \n" | |
| 1590 "movdqa 0x10(%0,%4,1),%%xmm3 \n" | |
| 1591 "pavgb %%xmm2,%%xmm0 \n" | |
| 1592 "pavgb %%xmm3,%%xmm1 \n" | |
| 1593 "movdqa (%0,%4,2),%%xmm2 \n" | |
| 1594 "movdqa 0x10(%0,%4,2),%%xmm3 \n" | |
| 1595 "movdqa (%0,%3,1),%%xmm4 \n" | |
| 1596 "movdqa 0x10(%0,%3,1),%%xmm5 \n" | |
| 1597 "lea 0x20(%0),%0 \n" | |
| 1598 "pavgb %%xmm4,%%xmm2 \n" | |
| 1599 "pavgb %%xmm2,%%xmm0 \n" | |
| 1600 "pavgb %%xmm5,%%xmm3 \n" | |
| 1601 "pavgb %%xmm3,%%xmm1 \n" | |
| 1602 "movdqa %%xmm0,%%xmm2 \n" | |
| 1603 "psrlw $0x8,%%xmm0 \n" | |
| 1604 "movdqa %%xmm1,%%xmm3 \n" | |
| 1605 "psrlw $0x8,%%xmm1 \n" | |
| 1606 "pand %%xmm7,%%xmm2 \n" | |
| 1607 "pand %%xmm7,%%xmm3 \n" | |
| 1608 "pavgw %%xmm2,%%xmm0 \n" | |
| 1609 "pavgw %%xmm3,%%xmm1 \n" | |
| 1610 "packuswb %%xmm1,%%xmm0 \n" | |
| 1611 "movdqa %%xmm0,%%xmm2 \n" | |
| 1612 "psrlw $0x8,%%xmm0 \n" | |
| 1613 "pand %%xmm7,%%xmm2 \n" | |
| 1614 "pavgw %%xmm2,%%xmm0 \n" | |
| 1615 "packuswb %%xmm0,%%xmm0 \n" | |
| 1616 "movq %%xmm0,(%1) \n" | |
| 1617 "lea 0x8(%1),%1 \n" | |
| 1618 "sub $0x8,%2 \n" | |
| 1619 "ja 1b \n" | |
| 1620 : "+r"(src_ptr), // %0 | |
| 1621 "+r"(dst_ptr), // %1 | |
| 1622 "+r"(dst_width), // %2 | |
| 1623 "+r"(temp) // %3 | |
| 1624 : "r"((intptr_t)(src_stride)) // %4 | |
| 1625 : "memory", "cc" | |
| 1626 #if defined(__x86_64__) | |
| 1627 , "xmm6", "xmm7" | |
| 1628 #endif | |
| 1629 ); | |
| 1630 } | |
| 1631 | |
| 1632 #define HAS_SCALEROWDOWN8_SSE2 | |
| 1633 static void ScaleRowDown8_SSE2(const uint8* src_ptr, int src_stride, | |
| 1634 uint8* dst_ptr, int dst_width) { | |
| 1635 asm volatile ( | |
| 1636 "pcmpeqb %%xmm5,%%xmm5 \n" | |
| 1637 "psrlq $0x38,%%xmm5 \n" | |
| 1638 "1:" | |
| 1639 "movdqa (%0),%%xmm0 \n" | |
| 1640 "movdqa 0x10(%0),%%xmm1 \n" | |
| 1641 "lea 0x20(%0),%0 \n" | |
| 1642 "pand %%xmm5,%%xmm0 \n" | |
| 1643 "pand %%xmm5,%%xmm1 \n" | |
| 1644 "packuswb %%xmm1,%%xmm0 \n" | |
| 1645 "packuswb %%xmm0,%%xmm0 \n" | |
| 1646 "packuswb %%xmm0,%%xmm0 \n" | |
| 1647 "movd %%xmm0,(%1) \n" | |
| 1648 "lea 0x4(%1),%1 \n" | |
| 1649 "sub $0x4,%2 \n" | |
| 1650 "ja 1b \n" | |
| 1651 : "+r"(src_ptr), // %0 | |
| 1652 "+r"(dst_ptr), // %1 | |
| 1653 "+r"(dst_width) // %2 | |
| 1654 : | |
| 1655 : "memory", "cc" | |
| 1656 ); | |
| 1657 } | |
| 1658 | |
| 1659 #if defined(__i386__) | |
| 1660 void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 1661 uint8* dst_ptr, int dst_width); | |
| 1662 asm( | |
| 1663 DECLARE_FUNCTION(ScaleRowDown8Int_SSE2) | |
| 1664 "pusha \n" | |
| 1665 "mov 0x24(%esp),%esi \n" | |
| 1666 "mov 0x28(%esp),%ebx \n" | |
| 1667 "mov 0x2c(%esp),%edi \n" | |
| 1668 "mov 0x30(%esp),%ecx \n" | |
| 1669 "lea (%ebx,%ebx,2),%edx \n" | |
| 1670 "pxor %xmm7,%xmm7 \n" | |
| 1671 | |
| 1672 "1:" | |
| 1673 "movdqa (%esi),%xmm0 \n" | |
| 1674 "movdqa 0x10(%esi),%xmm1 \n" | |
| 1675 "movdqa (%esi,%ebx,1),%xmm2 \n" | |
| 1676 "movdqa 0x10(%esi,%ebx,1),%xmm3 \n" | |
| 1677 "pavgb %xmm2,%xmm0 \n" | |
| 1678 "pavgb %xmm3,%xmm1 \n" | |
| 1679 "movdqa (%esi,%ebx,2),%xmm2 \n" | |
| 1680 "movdqa 0x10(%esi,%ebx,2),%xmm3 \n" | |
| 1681 "movdqa (%esi,%edx,1),%xmm4 \n" | |
| 1682 "movdqa 0x10(%esi,%edx,1),%xmm5 \n" | |
| 1683 "lea (%esi,%ebx,4),%ebp \n" | |
| 1684 "lea 0x20(%esi),%esi \n" | |
| 1685 "pavgb %xmm4,%xmm2 \n" | |
| 1686 "pavgb %xmm5,%xmm3 \n" | |
| 1687 "pavgb %xmm2,%xmm0 \n" | |
| 1688 "pavgb %xmm3,%xmm1 \n" | |
| 1689 "movdqa 0x0(%ebp),%xmm2 \n" | |
| 1690 "movdqa 0x10(%ebp),%xmm3 \n" | |
| 1691 "movdqa 0x0(%ebp,%ebx,1),%xmm4 \n" | |
| 1692 "movdqa 0x10(%ebp,%ebx,1),%xmm5 \n" | |
| 1693 "pavgb %xmm4,%xmm2 \n" | |
| 1694 "pavgb %xmm5,%xmm3 \n" | |
| 1695 "movdqa 0x0(%ebp,%ebx,2),%xmm4 \n" | |
| 1696 "movdqa 0x10(%ebp,%ebx,2),%xmm5 \n" | |
| 1697 "movdqa 0x0(%ebp,%edx,1),%xmm6 \n" | |
| 1698 "pavgb %xmm6,%xmm4 \n" | |
| 1699 "movdqa 0x10(%ebp,%edx,1),%xmm6 \n" | |
| 1700 "pavgb %xmm6,%xmm5 \n" | |
| 1701 "pavgb %xmm4,%xmm2 \n" | |
| 1702 "pavgb %xmm5,%xmm3 \n" | |
| 1703 "pavgb %xmm2,%xmm0 \n" | |
| 1704 "pavgb %xmm3,%xmm1 \n" | |
| 1705 "psadbw %xmm7,%xmm0 \n" | |
| 1706 "psadbw %xmm7,%xmm1 \n" | |
| 1707 "pshufd $0xd8,%xmm0,%xmm0 \n" | |
| 1708 "pshufd $0x8d,%xmm1,%xmm1 \n" | |
| 1709 "por %xmm1,%xmm0 \n" | |
| 1710 "psrlw $0x3,%xmm0 \n" | |
| 1711 "packuswb %xmm0,%xmm0 \n" | |
| 1712 "packuswb %xmm0,%xmm0 \n" | |
| 1713 "movd %xmm0,(%edi) \n" | |
| 1714 "lea 0x4(%edi),%edi \n" | |
| 1715 "sub $0x4,%ecx \n" | |
| 1716 "ja 1b \n" | |
| 1717 "popa \n" | |
| 1718 "ret \n" | |
| 1719 ); | |
| 1720 | |
| 1721 // fpic is used for magiccam plugin | |
| 1722 #if !defined(__PIC__) | |
| 1723 #define HAS_SCALEROWDOWN34_SSSE3 | |
| 1724 void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1725 uint8* dst_ptr, int dst_width); | |
| 1726 asm( | |
| 1727 DECLARE_FUNCTION(ScaleRowDown34_SSSE3) | |
| 1728 "pusha \n" | |
| 1729 "mov 0x24(%esp),%esi \n" | |
| 1730 "mov 0x2c(%esp),%edi \n" | |
| 1731 "mov 0x30(%esp),%ecx \n" | |
| 1732 "movdqa _shuf0,%xmm3 \n" | |
| 1733 "movdqa _shuf1,%xmm4 \n" | |
| 1734 "movdqa _shuf2,%xmm5 \n" | |
| 1735 | |
| 1736 "1:" | |
| 1737 "movdqa (%esi),%xmm0 \n" | |
| 1738 "movdqa 0x10(%esi),%xmm2 \n" | |
| 1739 "lea 0x20(%esi),%esi \n" | |
| 1740 "movdqa %xmm2,%xmm1 \n" | |
| 1741 "palignr $0x8,%xmm0,%xmm1 \n" | |
| 1742 "pshufb %xmm3,%xmm0 \n" | |
| 1743 "pshufb %xmm4,%xmm1 \n" | |
| 1744 "pshufb %xmm5,%xmm2 \n" | |
| 1745 "movq %xmm0,(%edi) \n" | |
| 1746 "movq %xmm1,0x8(%edi) \n" | |
| 1747 "movq %xmm2,0x10(%edi) \n" | |
| 1748 "lea 0x18(%edi),%edi \n" | |
| 1749 "sub $0x18,%ecx \n" | |
| 1750 "ja 1b \n" | |
| 1751 "popa \n" | |
| 1752 "ret \n" | |
| 1753 ); | |
| 1754 | |
| 1755 void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1756 uint8* dst_ptr, int dst_width); | |
| 1757 asm( | |
| 1758 DECLARE_FUNCTION(ScaleRowDown34_1_Int_SSSE3) | |
| 1759 "pusha \n" | |
| 1760 "mov 0x24(%esp),%esi \n" | |
| 1761 "mov 0x28(%esp),%ebp \n" | |
| 1762 "mov 0x2c(%esp),%edi \n" | |
| 1763 "mov 0x30(%esp),%ecx \n" | |
| 1764 "movdqa _shuf01,%xmm2 \n" | |
| 1765 "movdqa _shuf11,%xmm3 \n" | |
| 1766 "movdqa _shuf21,%xmm4 \n" | |
| 1767 "movdqa _madd01,%xmm5 \n" | |
| 1768 "movdqa _madd11,%xmm6 \n" | |
| 1769 "movdqa _round34,%xmm7 \n" | |
| 1770 | |
| 1771 "1:" | |
| 1772 "movdqa (%esi),%xmm0 \n" | |
| 1773 "movdqa (%esi,%ebp),%xmm1 \n" | |
| 1774 "pavgb %xmm1,%xmm0 \n" | |
| 1775 "pshufb %xmm2,%xmm0 \n" | |
| 1776 "pmaddubsw %xmm5,%xmm0 \n" | |
| 1777 "paddsw %xmm7,%xmm0 \n" | |
| 1778 "psrlw $0x2,%xmm0 \n" | |
| 1779 "packuswb %xmm0,%xmm0 \n" | |
| 1780 "movq %xmm0,(%edi) \n" | |
| 1781 "movdqu 0x8(%esi),%xmm0 \n" | |
| 1782 "movdqu 0x8(%esi,%ebp),%xmm1 \n" | |
| 1783 "pavgb %xmm1,%xmm0 \n" | |
| 1784 "pshufb %xmm3,%xmm0 \n" | |
| 1785 "pmaddubsw %xmm6,%xmm0 \n" | |
| 1786 "paddsw %xmm7,%xmm0 \n" | |
| 1787 "psrlw $0x2,%xmm0 \n" | |
| 1788 "packuswb %xmm0,%xmm0 \n" | |
| 1789 "movq %xmm0,0x8(%edi) \n" | |
| 1790 "movdqa 0x10(%esi),%xmm0 \n" | |
| 1791 "movdqa 0x10(%esi,%ebp),%xmm1 \n" | |
| 1792 "lea 0x20(%esi),%esi \n" | |
| 1793 "pavgb %xmm1,%xmm0 \n" | |
| 1794 "pshufb %xmm4,%xmm0 \n" | |
| 1795 "movdqa _madd21,%xmm1 \n" | |
| 1796 "pmaddubsw %xmm1,%xmm0 \n" | |
| 1797 "paddsw %xmm7,%xmm0 \n" | |
| 1798 "psrlw $0x2,%xmm0 \n" | |
| 1799 "packuswb %xmm0,%xmm0 \n" | |
| 1800 "movq %xmm0,0x10(%edi) \n" | |
| 1801 "lea 0x18(%edi),%edi \n" | |
| 1802 "sub $0x18,%ecx \n" | |
| 1803 "ja 1b \n" | |
| 1804 | |
| 1805 "popa \n" | |
| 1806 "ret \n" | |
| 1807 ); | |
| 1808 | |
| 1809 void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1810 uint8* dst_ptr, int dst_width); | |
| 1811 asm( | |
| 1812 DECLARE_FUNCTION(ScaleRowDown34_0_Int_SSSE3) | |
| 1813 "pusha \n" | |
| 1814 "mov 0x24(%esp),%esi \n" | |
| 1815 "mov 0x28(%esp),%ebp \n" | |
| 1816 "mov 0x2c(%esp),%edi \n" | |
| 1817 "mov 0x30(%esp),%ecx \n" | |
| 1818 "movdqa _shuf01,%xmm2 \n" | |
| 1819 "movdqa _shuf11,%xmm3 \n" | |
| 1820 "movdqa _shuf21,%xmm4 \n" | |
| 1821 "movdqa _madd01,%xmm5 \n" | |
| 1822 "movdqa _madd11,%xmm6 \n" | |
| 1823 "movdqa _round34,%xmm7 \n" | |
| 1824 | |
| 1825 "1:" | |
| 1826 "movdqa (%esi),%xmm0 \n" | |
| 1827 "movdqa (%esi,%ebp,1),%xmm1 \n" | |
| 1828 "pavgb %xmm0,%xmm1 \n" | |
| 1829 "pavgb %xmm1,%xmm0 \n" | |
| 1830 "pshufb %xmm2,%xmm0 \n" | |
| 1831 "pmaddubsw %xmm5,%xmm0 \n" | |
| 1832 "paddsw %xmm7,%xmm0 \n" | |
| 1833 "psrlw $0x2,%xmm0 \n" | |
| 1834 "packuswb %xmm0,%xmm0 \n" | |
| 1835 "movq %xmm0,(%edi) \n" | |
| 1836 "movdqu 0x8(%esi),%xmm0 \n" | |
| 1837 "movdqu 0x8(%esi,%ebp,1),%xmm1 \n" | |
| 1838 "pavgb %xmm0,%xmm1 \n" | |
| 1839 "pavgb %xmm1,%xmm0 \n" | |
| 1840 "pshufb %xmm3,%xmm0 \n" | |
| 1841 "pmaddubsw %xmm6,%xmm0 \n" | |
| 1842 "paddsw %xmm7,%xmm0 \n" | |
| 1843 "psrlw $0x2,%xmm0 \n" | |
| 1844 "packuswb %xmm0,%xmm0 \n" | |
| 1845 "movq %xmm0,0x8(%edi) \n" | |
| 1846 "movdqa 0x10(%esi),%xmm0 \n" | |
| 1847 "movdqa 0x10(%esi,%ebp,1),%xmm1 \n" | |
| 1848 "lea 0x20(%esi),%esi \n" | |
| 1849 "pavgb %xmm0,%xmm1 \n" | |
| 1850 "pavgb %xmm1,%xmm0 \n" | |
| 1851 "pshufb %xmm4,%xmm0 \n" | |
| 1852 "movdqa _madd21,%xmm1 \n" | |
| 1853 "pmaddubsw %xmm1,%xmm0 \n" | |
| 1854 "paddsw %xmm7,%xmm0 \n" | |
| 1855 "psrlw $0x2,%xmm0 \n" | |
| 1856 "packuswb %xmm0,%xmm0 \n" | |
| 1857 "movq %xmm0,0x10(%edi) \n" | |
| 1858 "lea 0x18(%edi),%edi \n" | |
| 1859 "sub $0x18,%ecx \n" | |
| 1860 "ja 1b \n" | |
| 1861 "popa \n" | |
| 1862 "ret \n" | |
| 1863 ); | |
| 1864 | |
| 1865 #define HAS_SCALEROWDOWN38_SSSE3 | |
| 1866 void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1867 uint8* dst_ptr, int dst_width); | |
| 1868 asm( | |
| 1869 DECLARE_FUNCTION(ScaleRowDown38_SSSE3) | |
| 1870 "pusha \n" | |
| 1871 "mov 0x24(%esp),%esi \n" | |
| 1872 "mov 0x28(%esp),%edx \n" | |
| 1873 "mov 0x2c(%esp),%edi \n" | |
| 1874 "mov 0x30(%esp),%ecx \n" | |
| 1875 "movdqa _shuf38a ,%xmm4 \n" | |
| 1876 "movdqa _shuf38b ,%xmm5 \n" | |
| 1877 | |
| 1878 "1:" | |
| 1879 "movdqa (%esi),%xmm0 \n" | |
| 1880 "movdqa 0x10(%esi),%xmm1 \n" | |
| 1881 "lea 0x20(%esi),%esi \n" | |
| 1882 "pshufb %xmm4,%xmm0 \n" | |
| 1883 "pshufb %xmm5,%xmm1 \n" | |
| 1884 "paddusb %xmm1,%xmm0 \n" | |
| 1885 "movq %xmm0,(%edi) \n" | |
| 1886 "movhlps %xmm0,%xmm1 \n" | |
| 1887 "movd %xmm1,0x8(%edi) \n" | |
| 1888 "lea 0xc(%edi),%edi \n" | |
| 1889 "sub $0xc,%ecx \n" | |
| 1890 "ja 1b \n" | |
| 1891 "popa \n" | |
| 1892 "ret \n" | |
| 1893 ); | |
| 1894 | |
| 1895 void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1896 uint8* dst_ptr, int dst_width); | |
| 1897 asm( | |
| 1898 DECLARE_FUNCTION(ScaleRowDown38_3_Int_SSSE3) | |
| 1899 "pusha \n" | |
| 1900 "mov 0x24(%esp),%esi \n" | |
| 1901 "mov 0x28(%esp),%edx \n" | |
| 1902 "mov 0x2c(%esp),%edi \n" | |
| 1903 "mov 0x30(%esp),%ecx \n" | |
| 1904 "movdqa _shufac0,%xmm4 \n" | |
| 1905 "movdqa _shufac3,%xmm5 \n" | |
| 1906 "movdqa _scaleac3,%xmm6 \n" | |
| 1907 "pxor %xmm7,%xmm7 \n" | |
| 1908 | |
| 1909 "1:" | |
| 1910 "movdqa (%esi),%xmm0 \n" | |
| 1911 "movdqa (%esi,%edx,1),%xmm2 \n" | |
| 1912 "movhlps %xmm0,%xmm1 \n" | |
| 1913 "movhlps %xmm2,%xmm3 \n" | |
| 1914 "punpcklbw %xmm7,%xmm0 \n" | |
| 1915 "punpcklbw %xmm7,%xmm1 \n" | |
| 1916 "punpcklbw %xmm7,%xmm2 \n" | |
| 1917 "punpcklbw %xmm7,%xmm3 \n" | |
| 1918 "paddusw %xmm2,%xmm0 \n" | |
| 1919 "paddusw %xmm3,%xmm1 \n" | |
| 1920 "movdqa (%esi,%edx,2),%xmm2 \n" | |
| 1921 "lea 0x10(%esi),%esi \n" | |
| 1922 "movhlps %xmm2,%xmm3 \n" | |
| 1923 "punpcklbw %xmm7,%xmm2 \n" | |
| 1924 "punpcklbw %xmm7,%xmm3 \n" | |
| 1925 "paddusw %xmm2,%xmm0 \n" | |
| 1926 "paddusw %xmm3,%xmm1 \n" | |
| 1927 "movdqa %xmm0,%xmm2 \n" | |
| 1928 "psrldq $0x2,%xmm0 \n" | |
| 1929 "paddusw %xmm0,%xmm2 \n" | |
| 1930 "psrldq $0x2,%xmm0 \n" | |
| 1931 "paddusw %xmm0,%xmm2 \n" | |
| 1932 "pshufb %xmm4,%xmm2 \n" | |
| 1933 "movdqa %xmm1,%xmm3 \n" | |
| 1934 "psrldq $0x2,%xmm1 \n" | |
| 1935 "paddusw %xmm1,%xmm3 \n" | |
| 1936 "psrldq $0x2,%xmm1 \n" | |
| 1937 "paddusw %xmm1,%xmm3 \n" | |
| 1938 "pshufb %xmm5,%xmm3 \n" | |
| 1939 "paddusw %xmm3,%xmm2 \n" | |
| 1940 "pmulhuw %xmm6,%xmm2 \n" | |
| 1941 "packuswb %xmm2,%xmm2 \n" | |
| 1942 "movd %xmm2,(%edi) \n" | |
| 1943 "pextrw $0x2,%xmm2,%eax \n" | |
| 1944 "mov %ax,0x4(%edi) \n" | |
| 1945 "lea 0x6(%edi),%edi \n" | |
| 1946 "sub $0x6,%ecx \n" | |
| 1947 "ja 1b \n" | |
| 1948 "popa \n" | |
| 1949 "ret \n" | |
| 1950 ); | |
| 1951 | |
| 1952 void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 1953 uint8* dst_ptr, int dst_width); | |
| 1954 asm( | |
| 1955 DECLARE_FUNCTION(ScaleRowDown38_2_Int_SSSE3) | |
| 1956 "pusha \n" | |
| 1957 "mov 0x24(%esp),%esi \n" | |
| 1958 "mov 0x28(%esp),%edx \n" | |
| 1959 "mov 0x2c(%esp),%edi \n" | |
| 1960 "mov 0x30(%esp),%ecx \n" | |
| 1961 "movdqa _shufab0,%xmm4 \n" | |
| 1962 "movdqa _shufab1,%xmm5 \n" | |
| 1963 "movdqa _shufab2,%xmm6 \n" | |
| 1964 "movdqa _scaleab2,%xmm7 \n" | |
| 1965 | |
| 1966 "1:" | |
| 1967 "movdqa (%esi),%xmm2 \n" | |
| 1968 "pavgb (%esi,%edx,1),%xmm2 \n" | |
| 1969 "lea 0x10(%esi),%esi \n" | |
| 1970 "movdqa %xmm2,%xmm0 \n" | |
| 1971 "pshufb %xmm4,%xmm0 \n" | |
| 1972 "movdqa %xmm2,%xmm1 \n" | |
| 1973 "pshufb %xmm5,%xmm1 \n" | |
| 1974 "paddusw %xmm1,%xmm0 \n" | |
| 1975 "pshufb %xmm6,%xmm2 \n" | |
| 1976 "paddusw %xmm2,%xmm0 \n" | |
| 1977 "pmulhuw %xmm7,%xmm0 \n" | |
| 1978 "packuswb %xmm0,%xmm0 \n" | |
| 1979 "movd %xmm0,(%edi) \n" | |
| 1980 "pextrw $0x2,%xmm0,%eax \n" | |
| 1981 "mov %ax,0x4(%edi) \n" | |
| 1982 "lea 0x6(%edi),%edi \n" | |
| 1983 "sub $0x6,%ecx \n" | |
| 1984 "ja 1b \n" | |
| 1985 "popa \n" | |
| 1986 "ret \n" | |
| 1987 ); | |
| 1988 #endif // __PIC__ | |
| 1989 | |
| 1990 #define HAS_SCALEADDROWS_SSE2 | |
| 1991 void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, | |
| 1992 uint16* dst_ptr, int src_width, | |
| 1993 int src_height); | |
| 1994 asm( | |
| 1995 DECLARE_FUNCTION(ScaleAddRows_SSE2) | |
| 1996 "pusha \n" | |
| 1997 "mov 0x24(%esp),%esi \n" | |
| 1998 "mov 0x28(%esp),%edx \n" | |
| 1999 "mov 0x2c(%esp),%edi \n" | |
| 2000 "mov 0x30(%esp),%ecx \n" | |
| 2001 "mov 0x34(%esp),%ebx \n" | |
| 2002 "pxor %xmm5,%xmm5 \n" | |
| 2003 | |
| 2004 "1:" | |
| 2005 "movdqa (%esi),%xmm2 \n" | |
| 2006 "lea (%esi,%edx,1),%eax \n" | |
| 2007 "movhlps %xmm2,%xmm3 \n" | |
| 2008 "lea -0x1(%ebx),%ebp \n" | |
| 2009 "punpcklbw %xmm5,%xmm2 \n" | |
| 2010 "punpcklbw %xmm5,%xmm3 \n" | |
| 2011 | |
| 2012 "2:" | |
| 2013 "movdqa (%eax),%xmm0 \n" | |
| 2014 "lea (%eax,%edx,1),%eax \n" | |
| 2015 "movhlps %xmm0,%xmm1 \n" | |
| 2016 "punpcklbw %xmm5,%xmm0 \n" | |
| 2017 "punpcklbw %xmm5,%xmm1 \n" | |
| 2018 "paddusw %xmm0,%xmm2 \n" | |
| 2019 "paddusw %xmm1,%xmm3 \n" | |
| 2020 "sub $0x1,%ebp \n" | |
| 2021 "ja 2b \n" | |
| 2022 | |
| 2023 "movdqa %xmm2,(%edi) \n" | |
| 2024 "movdqa %xmm3,0x10(%edi) \n" | |
| 2025 "lea 0x20(%edi),%edi \n" | |
| 2026 "lea 0x10(%esi),%esi \n" | |
| 2027 "sub $0x10,%ecx \n" | |
| 2028 "ja 1b \n" | |
| 2029 "popa \n" | |
| 2030 "ret \n" | |
| 2031 ); | |
| 2032 | |
| 2033 // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version | |
| 2034 #define HAS_SCALEFILTERROWS_SSE2 | |
| 2035 void ScaleFilterRows_SSE2(uint8* dst_ptr, | |
| 2036 const uint8* src_ptr, int src_stride, | |
| 2037 int dst_width, int source_y_fraction); | |
| 2038 asm( | |
| 2039 DECLARE_FUNCTION(ScaleFilterRows_SSE2) | |
| 2040 "push %esi \n" | |
| 2041 "push %edi \n" | |
| 2042 "mov 0xc(%esp),%edi \n" | |
| 2043 "mov 0x10(%esp),%esi \n" | |
| 2044 "mov 0x14(%esp),%edx \n" | |
| 2045 "mov 0x18(%esp),%ecx \n" | |
| 2046 "mov 0x1c(%esp),%eax \n" | |
| 2047 "cmp $0x0,%eax \n" | |
| 2048 "je 2f \n" | |
| 2049 "cmp $0x80,%eax \n" | |
| 2050 "je 3f \n" | |
| 2051 "movd %eax,%xmm6 \n" | |
| 2052 "punpcklwd %xmm6,%xmm6 \n" | |
| 2053 "pshufd $0x0,%xmm6,%xmm6 \n" | |
| 2054 "neg %eax \n" | |
| 2055 "add $0x100,%eax \n" | |
| 2056 "movd %eax,%xmm5 \n" | |
| 2057 "punpcklwd %xmm5,%xmm5 \n" | |
| 2058 "pshufd $0x0,%xmm5,%xmm5 \n" | |
| 2059 "pxor %xmm7,%xmm7 \n" | |
| 2060 | |
| 2061 "1:" | |
| 2062 "movdqa (%esi),%xmm0 \n" | |
| 2063 "movdqa (%esi,%edx,1),%xmm2 \n" | |
| 2064 "lea 0x10(%esi),%esi \n" | |
| 2065 "movdqa %xmm0,%xmm1 \n" | |
| 2066 "movdqa %xmm2,%xmm3 \n" | |
| 2067 "punpcklbw %xmm7,%xmm0 \n" | |
| 2068 "punpcklbw %xmm7,%xmm2 \n" | |
| 2069 "punpckhbw %xmm7,%xmm1 \n" | |
| 2070 "punpckhbw %xmm7,%xmm3 \n" | |
| 2071 "pmullw %xmm5,%xmm0 \n" | |
| 2072 "pmullw %xmm5,%xmm1 \n" | |
| 2073 "pmullw %xmm6,%xmm2 \n" | |
| 2074 "pmullw %xmm6,%xmm3 \n" | |
| 2075 "paddusw %xmm2,%xmm0 \n" | |
| 2076 "paddusw %xmm3,%xmm1 \n" | |
| 2077 "psrlw $0x8,%xmm0 \n" | |
| 2078 "psrlw $0x8,%xmm1 \n" | |
| 2079 "packuswb %xmm1,%xmm0 \n" | |
| 2080 "movdqa %xmm0,(%edi) \n" | |
| 2081 "lea 0x10(%edi),%edi \n" | |
| 2082 "sub $0x10,%ecx \n" | |
| 2083 "ja 1b \n" | |
| 2084 "mov -0x1(%edi),%al \n" | |
| 2085 "mov %al,(%edi) \n" | |
| 2086 "pop %edi \n" | |
| 2087 "pop %esi \n" | |
| 2088 "ret \n" | |
| 2089 | |
| 2090 "2:" | |
| 2091 "movdqa (%esi),%xmm0 \n" | |
| 2092 "lea 0x10(%esi),%esi \n" | |
| 2093 "movdqa %xmm0,(%edi) \n" | |
| 2094 "lea 0x10(%edi),%edi \n" | |
| 2095 "sub $0x10,%ecx \n" | |
| 2096 "ja 2b \n" | |
| 2097 | |
| 2098 "mov -0x1(%edi),%al \n" | |
| 2099 "mov %al,(%edi) \n" | |
| 2100 "pop %edi \n" | |
| 2101 "pop %esi \n" | |
| 2102 "ret \n" | |
| 2103 | |
| 2104 "3:" | |
| 2105 "movdqa (%esi),%xmm0 \n" | |
| 2106 "movdqa (%esi,%edx,1),%xmm2 \n" | |
| 2107 "lea 0x10(%esi),%esi \n" | |
| 2108 "pavgb %xmm2,%xmm0 \n" | |
| 2109 "movdqa %xmm0,(%edi) \n" | |
| 2110 "lea 0x10(%edi),%edi \n" | |
| 2111 "sub $0x10,%ecx \n" | |
| 2112 "ja 3b \n" | |
| 2113 | |
| 2114 "mov -0x1(%edi),%al \n" | |
| 2115 "mov %al,(%edi) \n" | |
| 2116 "pop %edi \n" | |
| 2117 "pop %esi \n" | |
| 2118 "ret \n" | |
| 2119 ); | |
| 2120 | |
| 2121 // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version | |
| 2122 #define HAS_SCALEFILTERROWS_SSSE3 | |
| 2123 void ScaleFilterRows_SSSE3(uint8* dst_ptr, | |
| 2124 const uint8* src_ptr, int src_stride, | |
| 2125 int dst_width, int source_y_fraction); | |
| 2126 asm( | |
| 2127 DECLARE_FUNCTION(ScaleFilterRows_SSSE3) | |
| 2128 "push %esi \n" | |
| 2129 "push %edi \n" | |
| 2130 "mov 0xc(%esp),%edi \n" | |
| 2131 "mov 0x10(%esp),%esi \n" | |
| 2132 "mov 0x14(%esp),%edx \n" | |
| 2133 "mov 0x18(%esp),%ecx \n" | |
| 2134 "mov 0x1c(%esp),%eax \n" | |
| 2135 "shr %eax \n" | |
| 2136 "cmp $0x0,%eax \n" | |
| 2137 "je 2f \n" | |
| 2138 "cmp $0x40,%eax \n" | |
| 2139 "je 3f \n" | |
| 2140 "mov %al,%ah \n" | |
| 2141 "neg %al \n" | |
| 2142 "add $0x80,%al \n" | |
| 2143 "movd %eax,%xmm5 \n" | |
| 2144 "punpcklwd %xmm5,%xmm5 \n" | |
| 2145 "pshufd $0x0,%xmm5,%xmm5 \n" | |
| 2146 | |
| 2147 "1:" | |
| 2148 "movdqa (%esi),%xmm0 \n" | |
| 2149 "movdqa (%esi,%edx,1),%xmm2 \n" | |
| 2150 "lea 0x10(%esi),%esi \n" | |
| 2151 "movdqa %xmm0,%xmm1 \n" | |
| 2152 "punpcklbw %xmm2,%xmm0 \n" | |
| 2153 "punpckhbw %xmm2,%xmm1 \n" | |
| 2154 "pmaddubsw %xmm5,%xmm0 \n" | |
| 2155 "pmaddubsw %xmm5,%xmm1 \n" | |
| 2156 "psrlw $0x7,%xmm0 \n" | |
| 2157 "psrlw $0x7,%xmm1 \n" | |
| 2158 "packuswb %xmm1,%xmm0 \n" | |
| 2159 "movdqa %xmm0,(%edi) \n" | |
| 2160 "lea 0x10(%edi),%edi \n" | |
| 2161 "sub $0x10,%ecx \n" | |
| 2162 "ja 1b \n" | |
| 2163 "mov -0x1(%edi),%al \n" | |
| 2164 "mov %al,(%edi) \n" | |
| 2165 "pop %edi \n" | |
| 2166 "pop %esi \n" | |
| 2167 "ret \n" | |
| 2168 | |
| 2169 "2:" | |
| 2170 "movdqa (%esi),%xmm0 \n" | |
| 2171 "lea 0x10(%esi),%esi \n" | |
| 2172 "movdqa %xmm0,(%edi) \n" | |
| 2173 "lea 0x10(%edi),%edi \n" | |
| 2174 "sub $0x10,%ecx \n" | |
| 2175 "ja 2b \n" | |
| 2176 "mov -0x1(%edi),%al \n" | |
| 2177 "mov %al,(%edi) \n" | |
| 2178 "pop %edi \n" | |
| 2179 "pop %esi \n" | |
| 2180 "ret \n" | |
| 2181 | |
| 2182 "3:" | |
| 2183 "movdqa (%esi),%xmm0 \n" | |
| 2184 "movdqa (%esi,%edx,1),%xmm2 \n" | |
| 2185 "lea 0x10(%esi),%esi \n" | |
| 2186 "pavgb %xmm2,%xmm0 \n" | |
| 2187 "movdqa %xmm0,(%edi) \n" | |
| 2188 "lea 0x10(%edi),%edi \n" | |
| 2189 "sub $0x10,%ecx \n" | |
| 2190 "ja 3b \n" | |
| 2191 "mov -0x1(%edi),%al \n" | |
| 2192 "mov %al,(%edi) \n" | |
| 2193 "pop %edi \n" | |
| 2194 "pop %esi \n" | |
| 2195 "ret \n" | |
| 2196 ); | |
| 2197 | |
| 2198 #elif defined(__x86_64__) | |
| 2199 static void ScaleRowDown8Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 2200 uint8* dst_ptr, int dst_width) { | |
| 2201 asm volatile ( | |
| 2202 "lea (%3,%3,2),%%r10 \n" | |
| 2203 "pxor %%xmm7,%%xmm7 \n" | |
| 2204 "1:" | |
| 2205 "movdqa (%0),%%xmm0 \n" | |
| 2206 "movdqa 0x10(%0),%%xmm1 \n" | |
| 2207 "movdqa (%0,%3,1),%%xmm2 \n" | |
| 2208 "movdqa 0x10(%0,%3,1),%%xmm3 \n" | |
| 2209 "pavgb %%xmm2,%%xmm0 \n" | |
| 2210 "pavgb %%xmm3,%%xmm1 \n" | |
| 2211 "movdqa (%0,%3,2),%%xmm2 \n" | |
| 2212 "movdqa 0x10(%0,%3,2),%%xmm3 \n" | |
| 2213 "movdqa (%0,%%r10,1),%%xmm4 \n" | |
| 2214 "movdqa 0x10(%0,%%r10,1),%%xmm5 \n" | |
| 2215 "lea (%0,%3,4),%%r11 \n" | |
| 2216 "lea 0x20(%0),%0 \n" | |
| 2217 "pavgb %%xmm4,%%xmm2 \n" | |
| 2218 "pavgb %%xmm5,%%xmm3 \n" | |
| 2219 "pavgb %%xmm2,%%xmm0 \n" | |
| 2220 "pavgb %%xmm3,%%xmm1 \n" | |
| 2221 "movdqa 0x0(%%r11),%%xmm2 \n" | |
| 2222 "movdqa 0x10(%%r11),%%xmm3 \n" | |
| 2223 "movdqa 0x0(%%r11,%3,1),%%xmm4 \n" | |
| 2224 "movdqa 0x10(%%r11,%3,1),%%xmm5 \n" | |
| 2225 "pavgb %%xmm4,%%xmm2 \n" | |
| 2226 "pavgb %%xmm5,%%xmm3 \n" | |
| 2227 "movdqa 0x0(%%r11,%3,2),%%xmm4 \n" | |
| 2228 "movdqa 0x10(%%r11,%3,2),%%xmm5 \n" | |
| 2229 "movdqa 0x0(%%r11,%%r10,1),%%xmm6 \n" | |
| 2230 "pavgb %%xmm6,%%xmm4 \n" | |
| 2231 "movdqa 0x10(%%r11,%%r10,1),%%xmm6 \n" | |
| 2232 "pavgb %%xmm6,%%xmm5 \n" | |
| 2233 "pavgb %%xmm4,%%xmm2 \n" | |
| 2234 "pavgb %%xmm5,%%xmm3 \n" | |
| 2235 "pavgb %%xmm2,%%xmm0 \n" | |
| 2236 "pavgb %%xmm3,%%xmm1 \n" | |
| 2237 "psadbw %%xmm7,%%xmm0 \n" | |
| 2238 "psadbw %%xmm7,%%xmm1 \n" | |
| 2239 "pshufd $0xd8,%%xmm0,%%xmm0 \n" | |
| 2240 "pshufd $0x8d,%%xmm1,%%xmm1 \n" | |
| 2241 "por %%xmm1,%%xmm0 \n" | |
| 2242 "psrlw $0x3,%%xmm0 \n" | |
| 2243 "packuswb %%xmm0,%%xmm0 \n" | |
| 2244 "packuswb %%xmm0,%%xmm0 \n" | |
| 2245 "movd %%xmm0,(%1) \n" | |
| 2246 "lea 0x4(%1),%1 \n" | |
| 2247 "sub $0x4,%2 \n" | |
| 2248 "ja 1b \n" | |
| 2249 : "+r"(src_ptr), // %0 | |
| 2250 "+r"(dst_ptr), // %1 | |
| 2251 "+r"(dst_width) // %2 | |
| 2252 : "r"((intptr_t)(src_stride)) // %3 | |
| 2253 : "memory", "cc", "r10", "r11", "xmm6", "xmm7" | |
| 2254 ); | |
| 2255 } | |
| 2256 | |
| 2257 #define HAS_SCALEROWDOWN34_SSSE3 | |
| 2258 static void ScaleRowDown34_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2259 uint8* dst_ptr, int dst_width) { | |
| 2260 asm volatile ( | |
| 2261 "movdqa (%3),%%xmm3 \n" | |
| 2262 "movdqa (%4),%%xmm4 \n" | |
| 2263 "movdqa (%5),%%xmm5 \n" | |
| 2264 "1:" | |
| 2265 "movdqa (%0),%%xmm0 \n" | |
| 2266 "movdqa 0x10(%0),%%xmm2 \n" | |
| 2267 "lea 0x20(%0),%0 \n" | |
| 2268 "movdqa %%xmm2,%%xmm1 \n" | |
| 2269 "palignr $0x8,%%xmm0,%%xmm1 \n" | |
| 2270 "pshufb %%xmm3,%%xmm0 \n" | |
| 2271 "pshufb %%xmm4,%%xmm1 \n" | |
| 2272 "pshufb %%xmm5,%%xmm2 \n" | |
| 2273 "movq %%xmm0,(%1) \n" | |
| 2274 "movq %%xmm1,0x8(%1) \n" | |
| 2275 "movq %%xmm2,0x10(%1) \n" | |
| 2276 "lea 0x18(%1),%1 \n" | |
| 2277 "sub $0x18,%2 \n" | |
| 2278 "ja 1b \n" | |
| 2279 : "+r"(src_ptr), // %0 | |
| 2280 "+r"(dst_ptr), // %1 | |
| 2281 "+r"(dst_width) // %2 | |
| 2282 : "r"(_shuf0), // %3 | |
| 2283 "r"(_shuf1), // %4 | |
| 2284 "r"(_shuf2) // %5 | |
| 2285 : "memory", "cc" | |
| 2286 ); | |
| 2287 } | |
| 2288 | |
| 2289 static void ScaleRowDown34_1_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2290 uint8* dst_ptr, int dst_width) { | |
| 2291 asm volatile ( | |
| 2292 "movdqa (%4),%%xmm2 \n" // _shuf01 | |
| 2293 "movdqa (%5),%%xmm3 \n" // _shuf11 | |
| 2294 "movdqa (%6),%%xmm4 \n" // _shuf21 | |
| 2295 "movdqa (%7),%%xmm5 \n" // _madd01 | |
| 2296 "movdqa (%8),%%xmm6 \n" // _madd11 | |
| 2297 "movdqa (%9),%%xmm7 \n" // _round34 | |
| 2298 "movdqa (%10),%%xmm8 \n" // _madd21 | |
| 2299 "1:" | |
| 2300 "movdqa (%0),%%xmm0 \n" | |
| 2301 "movdqa (%0,%3),%%xmm1 \n" | |
| 2302 "pavgb %%xmm1,%%xmm0 \n" | |
| 2303 "pshufb %%xmm2,%%xmm0 \n" | |
| 2304 "pmaddubsw %%xmm5,%%xmm0 \n" | |
| 2305 "paddsw %%xmm7,%%xmm0 \n" | |
| 2306 "psrlw $0x2,%%xmm0 \n" | |
| 2307 "packuswb %%xmm0,%%xmm0 \n" | |
| 2308 "movq %%xmm0,(%1) \n" | |
| 2309 "movdqu 0x8(%0),%%xmm0 \n" | |
| 2310 "movdqu 0x8(%0,%3),%%xmm1 \n" | |
| 2311 "pavgb %%xmm1,%%xmm0 \n" | |
| 2312 "pshufb %%xmm3,%%xmm0 \n" | |
| 2313 "pmaddubsw %%xmm6,%%xmm0 \n" | |
| 2314 "paddsw %%xmm7,%%xmm0 \n" | |
| 2315 "psrlw $0x2,%%xmm0 \n" | |
| 2316 "packuswb %%xmm0,%%xmm0 \n" | |
| 2317 "movq %%xmm0,0x8(%1) \n" | |
| 2318 "movdqa 0x10(%0),%%xmm0 \n" | |
| 2319 "movdqa 0x10(%0,%3),%%xmm1 \n" | |
| 2320 "lea 0x20(%0),%0 \n" | |
| 2321 "pavgb %%xmm1,%%xmm0 \n" | |
| 2322 "pshufb %%xmm4,%%xmm0 \n" | |
| 2323 "pmaddubsw %%xmm8,%%xmm0 \n" | |
| 2324 "paddsw %%xmm7,%%xmm0 \n" | |
| 2325 "psrlw $0x2,%%xmm0 \n" | |
| 2326 "packuswb %%xmm0,%%xmm0 \n" | |
| 2327 "movq %%xmm0,0x10(%1) \n" | |
| 2328 "lea 0x18(%1),%1 \n" | |
| 2329 "sub $0x18,%2 \n" | |
| 2330 "ja 1b \n" | |
| 2331 : "+r"(src_ptr), // %0 | |
| 2332 "+r"(dst_ptr), // %1 | |
| 2333 "+r"(dst_width) // %2 | |
| 2334 : "r"((intptr_t)(src_stride)), // %3 | |
| 2335 "r"(_shuf01), // %4 | |
| 2336 "r"(_shuf11), // %5 | |
| 2337 "r"(_shuf21), // %6 | |
| 2338 "r"(_madd01), // %7 | |
| 2339 "r"(_madd11), // %8 | |
| 2340 "r"(_round34), // %9 | |
| 2341 "r"(_madd21) // %10 | |
| 2342 : "memory", "cc", "xmm6", "xmm7", "xmm8" | |
| 2343 ); | |
| 2344 } | |
| 2345 | |
| 2346 static void ScaleRowDown34_0_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2347 uint8* dst_ptr, int dst_width) { | |
| 2348 asm volatile ( | |
| 2349 "movdqa (%4),%%xmm2 \n" // _shuf01 | |
| 2350 "movdqa (%5),%%xmm3 \n" // _shuf11 | |
| 2351 "movdqa (%6),%%xmm4 \n" // _shuf21 | |
| 2352 "movdqa (%7),%%xmm5 \n" // _madd01 | |
| 2353 "movdqa (%8),%%xmm6 \n" // _madd11 | |
| 2354 "movdqa (%9),%%xmm7 \n" // _round34 | |
| 2355 "movdqa (%10),%%xmm8 \n" // _madd21 | |
| 2356 "1:" | |
| 2357 "movdqa (%0),%%xmm0 \n" | |
| 2358 "movdqa (%0,%3,1),%%xmm1 \n" | |
| 2359 "pavgb %%xmm0,%%xmm1 \n" | |
| 2360 "pavgb %%xmm1,%%xmm0 \n" | |
| 2361 "pshufb %%xmm2,%%xmm0 \n" | |
| 2362 "pmaddubsw %%xmm5,%%xmm0 \n" | |
| 2363 "paddsw %%xmm7,%%xmm0 \n" | |
| 2364 "psrlw $0x2,%%xmm0 \n" | |
| 2365 "packuswb %%xmm0,%%xmm0 \n" | |
| 2366 "movq %%xmm0,(%1) \n" | |
| 2367 "movdqu 0x8(%0),%%xmm0 \n" | |
| 2368 "movdqu 0x8(%0,%3,1),%%xmm1 \n" | |
| 2369 "pavgb %%xmm0,%%xmm1 \n" | |
| 2370 "pavgb %%xmm1,%%xmm0 \n" | |
| 2371 "pshufb %%xmm3,%%xmm0 \n" | |
| 2372 "pmaddubsw %%xmm6,%%xmm0 \n" | |
| 2373 "paddsw %%xmm7,%%xmm0 \n" | |
| 2374 "psrlw $0x2,%%xmm0 \n" | |
| 2375 "packuswb %%xmm0,%%xmm0 \n" | |
| 2376 "movq %%xmm0,0x8(%1) \n" | |
| 2377 "movdqa 0x10(%0),%%xmm0 \n" | |
| 2378 "movdqa 0x10(%0,%3,1),%%xmm1 \n" | |
| 2379 "lea 0x20(%0),%0 \n" | |
| 2380 "pavgb %%xmm0,%%xmm1 \n" | |
| 2381 "pavgb %%xmm1,%%xmm0 \n" | |
| 2382 "pshufb %%xmm4,%%xmm0 \n" | |
| 2383 "pmaddubsw %%xmm8,%%xmm0 \n" | |
| 2384 "paddsw %%xmm7,%%xmm0 \n" | |
| 2385 "psrlw $0x2,%%xmm0 \n" | |
| 2386 "packuswb %%xmm0,%%xmm0 \n" | |
| 2387 "movq %%xmm0,0x10(%1) \n" | |
| 2388 "lea 0x18(%1),%1 \n" | |
| 2389 "sub $0x18,%2 \n" | |
| 2390 "ja 1b \n" | |
| 2391 : "+r"(src_ptr), // %0 | |
| 2392 "+r"(dst_ptr), // %1 | |
| 2393 "+r"(dst_width) // %2 | |
| 2394 : "r"((intptr_t)(src_stride)), // %3 | |
| 2395 "r"(_shuf01), // %4 | |
| 2396 "r"(_shuf11), // %5 | |
| 2397 "r"(_shuf21), // %6 | |
| 2398 "r"(_madd01), // %7 | |
| 2399 "r"(_madd11), // %8 | |
| 2400 "r"(_round34), // %9 | |
| 2401 "r"(_madd21) // %10 | |
| 2402 : "memory", "cc", "xmm6", "xmm7", "xmm8" | |
| 2403 ); | |
| 2404 } | |
| 2405 | |
| 2406 #define HAS_SCALEROWDOWN38_SSSE3 | |
| 2407 static void ScaleRowDown38_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2408 uint8* dst_ptr, int dst_width) { | |
| 2409 asm volatile ( | |
| 2410 "movdqa (%3),%%xmm4 \n" | |
| 2411 "movdqa (%4),%%xmm5 \n" | |
| 2412 "1:" | |
| 2413 "movdqa (%0),%%xmm0 \n" | |
| 2414 "movdqa 0x10(%0),%%xmm1 \n" | |
| 2415 "lea 0x20(%0),%0 \n" | |
| 2416 "pshufb %%xmm4,%%xmm0 \n" | |
| 2417 "pshufb %%xmm5,%%xmm1 \n" | |
| 2418 "paddusb %%xmm1,%%xmm0 \n" | |
| 2419 "movq %%xmm0,(%1) \n" | |
| 2420 "movhlps %%xmm0,%%xmm1 \n" | |
| 2421 "movd %%xmm1,0x8(%1) \n" | |
| 2422 "lea 0xc(%1),%1 \n" | |
| 2423 "sub $0xc,%2 \n" | |
| 2424 "ja 1b \n" | |
| 2425 : "+r"(src_ptr), // %0 | |
| 2426 "+r"(dst_ptr), // %1 | |
| 2427 "+r"(dst_width) // %2 | |
| 2428 : "r"(_shuf38a), // %3 | |
| 2429 "r"(_shuf38b) // %4 | |
| 2430 : "memory", "cc" | |
| 2431 ); | |
| 2432 } | |
| 2433 | |
| 2434 static void ScaleRowDown38_3_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2435 uint8* dst_ptr, int dst_width) { | |
| 2436 asm volatile ( | |
| 2437 "movdqa (%4),%%xmm4 \n" | |
| 2438 "movdqa (%5),%%xmm5 \n" | |
| 2439 "movdqa (%6),%%xmm6 \n" | |
| 2440 "pxor %%xmm7,%%xmm7 \n" | |
| 2441 "1:" | |
| 2442 "movdqa (%0),%%xmm0 \n" | |
| 2443 "movdqa (%0,%3,1),%%xmm2 \n" | |
| 2444 "movhlps %%xmm0,%%xmm1 \n" | |
| 2445 "movhlps %%xmm2,%%xmm3 \n" | |
| 2446 "punpcklbw %%xmm7,%%xmm0 \n" | |
| 2447 "punpcklbw %%xmm7,%%xmm1 \n" | |
| 2448 "punpcklbw %%xmm7,%%xmm2 \n" | |
| 2449 "punpcklbw %%xmm7,%%xmm3 \n" | |
| 2450 "paddusw %%xmm2,%%xmm0 \n" | |
| 2451 "paddusw %%xmm3,%%xmm1 \n" | |
| 2452 "movdqa (%0,%3,2),%%xmm2 \n" | |
| 2453 "lea 0x10(%0),%0 \n" | |
| 2454 "movhlps %%xmm2,%%xmm3 \n" | |
| 2455 "punpcklbw %%xmm7,%%xmm2 \n" | |
| 2456 "punpcklbw %%xmm7,%%xmm3 \n" | |
| 2457 "paddusw %%xmm2,%%xmm0 \n" | |
| 2458 "paddusw %%xmm3,%%xmm1 \n" | |
| 2459 "movdqa %%xmm0,%%xmm2 \n" | |
| 2460 "psrldq $0x2,%%xmm0 \n" | |
| 2461 "paddusw %%xmm0,%%xmm2 \n" | |
| 2462 "psrldq $0x2,%%xmm0 \n" | |
| 2463 "paddusw %%xmm0,%%xmm2 \n" | |
| 2464 "pshufb %%xmm4,%%xmm2 \n" | |
| 2465 "movdqa %%xmm1,%%xmm3 \n" | |
| 2466 "psrldq $0x2,%%xmm1 \n" | |
| 2467 "paddusw %%xmm1,%%xmm3 \n" | |
| 2468 "psrldq $0x2,%%xmm1 \n" | |
| 2469 "paddusw %%xmm1,%%xmm3 \n" | |
| 2470 "pshufb %%xmm5,%%xmm3 \n" | |
| 2471 "paddusw %%xmm3,%%xmm2 \n" | |
| 2472 "pmulhuw %%xmm6,%%xmm2 \n" | |
| 2473 "packuswb %%xmm2,%%xmm2 \n" | |
| 2474 "movd %%xmm2,(%1) \n" | |
| 2475 "pextrw $0x2,%%xmm2,%%eax \n" | |
| 2476 "mov %%ax,0x4(%1) \n" | |
| 2477 "lea 0x6(%1),%1 \n" | |
| 2478 "sub $0x6,%2 \n" | |
| 2479 "ja 1b \n" | |
| 2480 : "+r"(src_ptr), // %0 | |
| 2481 "+r"(dst_ptr), // %1 | |
| 2482 "+r"(dst_width) // %2 | |
| 2483 : "r"((intptr_t)(src_stride)), // %3 | |
| 2484 "r"(_shufac0), // %4 | |
| 2485 "r"(_shufac3), // %5 | |
| 2486 "r"(_scaleac3) // %6 | |
| 2487 : "memory", "cc", "rax", "xmm6", "xmm7" | |
| 2488 ); | |
| 2489 } | |
| 2490 | |
| 2491 static void ScaleRowDown38_2_Int_SSSE3(const uint8* src_ptr, int src_stride, | |
| 2492 uint8* dst_ptr, int dst_width) { | |
| 2493 asm volatile ( | |
| 2494 "movdqa (%4),%%xmm4 \n" | |
| 2495 "movdqa (%5),%%xmm5 \n" | |
| 2496 "movdqa (%6),%%xmm6 \n" | |
| 2497 "movdqa (%7),%%xmm7 \n" | |
| 2498 "1:" | |
| 2499 "movdqa (%0),%%xmm2 \n" | |
| 2500 "pavgb (%0,%3,1),%%xmm2 \n" | |
| 2501 "lea 0x10(%0),%0 \n" | |
| 2502 "movdqa %%xmm2,%%xmm0 \n" | |
| 2503 "pshufb %%xmm4,%%xmm0 \n" | |
| 2504 "movdqa %%xmm2,%%xmm1 \n" | |
| 2505 "pshufb %%xmm5,%%xmm1 \n" | |
| 2506 "paddusw %%xmm1,%%xmm0 \n" | |
| 2507 "pshufb %%xmm6,%%xmm2 \n" | |
| 2508 "paddusw %%xmm2,%%xmm0 \n" | |
| 2509 "pmulhuw %%xmm7,%%xmm0 \n" | |
| 2510 "packuswb %%xmm0,%%xmm0 \n" | |
| 2511 "movd %%xmm0,(%1) \n" | |
| 2512 "pextrw $0x2,%%xmm0,%%eax \n" | |
| 2513 "mov %%ax,0x4(%1) \n" | |
| 2514 "lea 0x6(%1),%1 \n" | |
| 2515 "sub $0x6,%2 \n" | |
| 2516 "ja 1b \n" | |
| 2517 : "+r"(src_ptr), // %0 | |
| 2518 "+r"(dst_ptr), // %1 | |
| 2519 "+r"(dst_width) // %2 | |
| 2520 : "r"((intptr_t)(src_stride)), // %3 | |
| 2521 "r"(_shufab0), // %4 | |
| 2522 "r"(_shufab1), // %5 | |
| 2523 "r"(_shufab2), // %6 | |
| 2524 "r"(_scaleab2) // %7 | |
| 2525 : "memory", "cc", "rax", "xmm6", "xmm7" | |
| 2526 ); | |
| 2527 } | |
| 2528 | |
| 2529 #define HAS_SCALEADDROWS_SSE2 | |
| 2530 static void ScaleAddRows_SSE2(const uint8* src_ptr, int src_stride, | |
| 2531 uint16* dst_ptr, int src_width, | |
| 2532 int src_height) { | |
| 2533 asm volatile ( | |
| 2534 "pxor %%xmm5,%%xmm5 \n" | |
| 2535 "1:" | |
| 2536 "movdqa (%0),%%xmm2 \n" | |
| 2537 "lea (%0,%4,1),%%r10 \n" | |
| 2538 "movhlps %%xmm2,%%xmm3 \n" | |
| 2539 "lea -0x1(%3),%%r11 \n" | |
| 2540 "punpcklbw %%xmm5,%%xmm2 \n" | |
| 2541 "punpcklbw %%xmm5,%%xmm3 \n" | |
| 2542 | |
| 2543 "2:" | |
| 2544 "movdqa (%%r10),%%xmm0 \n" | |
| 2545 "lea (%%r10,%4,1),%%r10 \n" | |
| 2546 "movhlps %%xmm0,%%xmm1 \n" | |
| 2547 "punpcklbw %%xmm5,%%xmm0 \n" | |
| 2548 "punpcklbw %%xmm5,%%xmm1 \n" | |
| 2549 "paddusw %%xmm0,%%xmm2 \n" | |
| 2550 "paddusw %%xmm1,%%xmm3 \n" | |
| 2551 "sub $0x1,%%r11 \n" | |
| 2552 "ja 2b \n" | |
| 2553 | |
| 2554 "movdqa %%xmm2,(%1) \n" | |
| 2555 "movdqa %%xmm3,0x10(%1) \n" | |
| 2556 "lea 0x20(%1),%1 \n" | |
| 2557 "lea 0x10(%0),%0 \n" | |
| 2558 "sub $0x10,%2 \n" | |
| 2559 "ja 1b \n" | |
| 2560 : "+r"(src_ptr), // %0 | |
| 2561 "+r"(dst_ptr), // %1 | |
| 2562 "+r"(src_width), // %2 | |
| 2563 "+r"(src_height) // %3 | |
| 2564 : "r"((intptr_t)(src_stride)) // %4 | |
| 2565 : "memory", "cc", "r10", "r11" | |
| 2566 ); | |
| 2567 } | |
| 2568 | |
| 2569 // Bilinear row filtering combines 16x2 -> 16x1. SSE2 version | |
| 2570 #define HAS_SCALEFILTERROWS_SSE2 | |
| 2571 static void ScaleFilterRows_SSE2(uint8* dst_ptr, | |
| 2572 const uint8* src_ptr, int src_stride, | |
| 2573 int dst_width, int source_y_fraction) { | |
| 2574 if (source_y_fraction == 0) { | |
| 2575 asm volatile ( | |
| 2576 "1:" | |
| 2577 "movdqa (%1),%%xmm0 \n" | |
| 2578 "lea 0x10(%1),%1 \n" | |
| 2579 "movdqa %%xmm0,(%0) \n" | |
| 2580 "lea 0x10(%0),%0 \n" | |
| 2581 "sub $0x10,%2 \n" | |
| 2582 "ja 1b \n" | |
| 2583 "mov -0x1(%0),%%al \n" | |
| 2584 "mov %%al,(%0) \n" | |
| 2585 : "+r"(dst_ptr), // %0 | |
| 2586 "+r"(src_ptr), // %1 | |
| 2587 "+r"(dst_width) // %2 | |
| 2588 : | |
| 2589 : "memory", "cc", "rax" | |
| 2590 ); | |
| 2591 return; | |
| 2592 } else if (source_y_fraction == 128) { | |
| 2593 asm volatile ( | |
| 2594 "1:" | |
| 2595 "movdqa (%1),%%xmm0 \n" | |
| 2596 "movdqa (%1,%3,1),%%xmm2 \n" | |
| 2597 "lea 0x10(%1),%1 \n" | |
| 2598 "pavgb %%xmm2,%%xmm0 \n" | |
| 2599 "movdqa %%xmm0,(%0) \n" | |
| 2600 "lea 0x10(%0),%0 \n" | |
| 2601 "sub $0x10,%2 \n" | |
| 2602 "ja 1b \n" | |
| 2603 "mov -0x1(%0),%%al \n" | |
| 2604 "mov %%al,(%0) \n" | |
| 2605 : "+r"(dst_ptr), // %0 | |
| 2606 "+r"(src_ptr), // %1 | |
| 2607 "+r"(dst_width) // %2 | |
| 2608 : "r"((intptr_t)(src_stride)) // %3 | |
| 2609 : "memory", "cc", "rax" | |
| 2610 ); | |
| 2611 return; | |
| 2612 } else { | |
| 2613 asm volatile ( | |
| 2614 "mov %3,%%eax \n" | |
| 2615 "movd %%eax,%%xmm6 \n" | |
| 2616 "punpcklwd %%xmm6,%%xmm6 \n" | |
| 2617 "pshufd $0x0,%%xmm6,%%xmm6 \n" | |
| 2618 "neg %%eax \n" | |
| 2619 "add $0x100,%%eax \n" | |
| 2620 "movd %%eax,%%xmm5 \n" | |
| 2621 "punpcklwd %%xmm5,%%xmm5 \n" | |
| 2622 "pshufd $0x0,%%xmm5,%%xmm5 \n" | |
| 2623 "pxor %%xmm7,%%xmm7 \n" | |
| 2624 "1:" | |
| 2625 "movdqa (%1),%%xmm0 \n" | |
| 2626 "movdqa (%1,%4,1),%%xmm2 \n" | |
| 2627 "lea 0x10(%1),%1 \n" | |
| 2628 "movdqa %%xmm0,%%xmm1 \n" | |
| 2629 "movdqa %%xmm2,%%xmm3 \n" | |
| 2630 "punpcklbw %%xmm7,%%xmm0 \n" | |
| 2631 "punpcklbw %%xmm7,%%xmm2 \n" | |
| 2632 "punpckhbw %%xmm7,%%xmm1 \n" | |
| 2633 "punpckhbw %%xmm7,%%xmm3 \n" | |
| 2634 "pmullw %%xmm5,%%xmm0 \n" | |
| 2635 "pmullw %%xmm5,%%xmm1 \n" | |
| 2636 "pmullw %%xmm6,%%xmm2 \n" | |
| 2637 "pmullw %%xmm6,%%xmm3 \n" | |
| 2638 "paddusw %%xmm2,%%xmm0 \n" | |
| 2639 "paddusw %%xmm3,%%xmm1 \n" | |
| 2640 "psrlw $0x8,%%xmm0 \n" | |
| 2641 "psrlw $0x8,%%xmm1 \n" | |
| 2642 "packuswb %%xmm1,%%xmm0 \n" | |
| 2643 "movdqa %%xmm0,(%0) \n" | |
| 2644 "lea 0x10(%0),%0 \n" | |
| 2645 "sub $0x10,%2 \n" | |
| 2646 "ja 1b \n" | |
| 2647 "mov -0x1(%0),%%al \n" | |
| 2648 "mov %%al,(%0) \n" | |
| 2649 : "+r"(dst_ptr), // %0 | |
| 2650 "+r"(src_ptr), // %1 | |
| 2651 "+r"(dst_width), // %2 | |
| 2652 "+r"(source_y_fraction) // %3 | |
| 2653 : "r"((intptr_t)(src_stride)) // %4 | |
| 2654 : "memory", "cc", "rax", "xmm6", "xmm7" | |
| 2655 ); | |
| 2656 } | |
| 2657 return; | |
| 2658 } | |
| 2659 | |
| 2660 // Bilinear row filtering combines 16x2 -> 16x1. SSSE3 version | |
| 2661 #define HAS_SCALEFILTERROWS_SSSE3 | |
| 2662 static void ScaleFilterRows_SSSE3(uint8* dst_ptr, | |
| 2663 const uint8* src_ptr, int src_stride, | |
| 2664 int dst_width, int source_y_fraction) { | |
| 2665 source_y_fraction >>= 1; | |
| 2666 if (source_y_fraction == 0) { | |
| 2667 asm volatile ( | |
| 2668 "1:" | |
| 2669 "movdqa (%1),%%xmm0 \n" | |
| 2670 "lea 0x10(%1),%1 \n" | |
| 2671 "movdqa %%xmm0,(%0) \n" | |
| 2672 "lea 0x10(%0),%0 \n" | |
| 2673 "sub $0x10,%2 \n" | |
| 2674 "ja 1b \n" | |
| 2675 "mov -0x1(%0),%%al \n" | |
| 2676 "mov %%al,(%0) \n" | |
| 2677 : "+r"(dst_ptr), // %0 | |
| 2678 "+r"(src_ptr), // %1 | |
| 2679 "+r"(dst_width) // %2 | |
| 2680 : | |
| 2681 : "memory", "cc", "rax" | |
| 2682 ); | |
| 2683 return; | |
| 2684 } else if (source_y_fraction == 64) { | |
| 2685 asm volatile ( | |
| 2686 "1:" | |
| 2687 "movdqa (%1),%%xmm0 \n" | |
| 2688 "movdqa (%1,%3,1),%%xmm2 \n" | |
| 2689 "lea 0x10(%1),%1 \n" | |
| 2690 "pavgb %%xmm2,%%xmm0 \n" | |
| 2691 "movdqa %%xmm0,(%0) \n" | |
| 2692 "lea 0x10(%0),%0 \n" | |
| 2693 "sub $0x10,%2 \n" | |
| 2694 "ja 1b \n" | |
| 2695 "mov -0x1(%0),%%al \n" | |
| 2696 "mov %%al,(%0) \n" | |
| 2697 : "+r"(dst_ptr), // %0 | |
| 2698 "+r"(src_ptr), // %1 | |
| 2699 "+r"(dst_width) // %2 | |
| 2700 : "r"((intptr_t)(src_stride)) // %3 | |
| 2701 : "memory", "cc", "rax" | |
| 2702 ); | |
| 2703 return; | |
| 2704 } else { | |
| 2705 asm volatile ( | |
| 2706 "mov %3,%%eax \n" | |
| 2707 "mov %%al,%%ah \n" | |
| 2708 "neg %%al \n" | |
| 2709 "add $0x80,%%al \n" | |
| 2710 "movd %%eax,%%xmm5 \n" | |
| 2711 "punpcklwd %%xmm5,%%xmm5 \n" | |
| 2712 "pshufd $0x0,%%xmm5,%%xmm5 \n" | |
| 2713 "1:" | |
| 2714 "movdqa (%1),%%xmm0 \n" | |
| 2715 "movdqa (%1,%4,1),%%xmm2 \n" | |
| 2716 "lea 0x10(%1),%1 \n" | |
| 2717 "movdqa %%xmm0,%%xmm1 \n" | |
| 2718 "punpcklbw %%xmm2,%%xmm0 \n" | |
| 2719 "punpckhbw %%xmm2,%%xmm1 \n" | |
| 2720 "pmaddubsw %%xmm5,%%xmm0 \n" | |
| 2721 "pmaddubsw %%xmm5,%%xmm1 \n" | |
| 2722 "psrlw $0x7,%%xmm0 \n" | |
| 2723 "psrlw $0x7,%%xmm1 \n" | |
| 2724 "packuswb %%xmm1,%%xmm0 \n" | |
| 2725 "movdqa %%xmm0,(%0) \n" | |
| 2726 "lea 0x10(%0),%0 \n" | |
| 2727 "sub $0x10,%2 \n" | |
| 2728 "ja 1b \n" | |
| 2729 "mov -0x1(%0),%%al \n" | |
| 2730 "mov %%al,(%0) \n" | |
| 2731 : "+r"(dst_ptr), // %0 | |
| 2732 "+r"(src_ptr), // %1 | |
| 2733 "+r"(dst_width), // %2 | |
| 2734 "+r"(source_y_fraction) // %3 | |
| 2735 : "r"((intptr_t)(src_stride)) // %4 | |
| 2736 : "memory", "cc", "rax" | |
| 2737 ); | |
| 2738 } | |
| 2739 return; | |
| 2740 } | |
| 2741 #endif | |
| 2742 #endif | |
| 2743 | |
| 2744 // CPU agnostic row functions | |
| 2745 static void ScaleRowDown2_C(const uint8* src_ptr, int src_stride, | |
| 2746 uint8* dst, int dst_width) { | |
| 2747 int x; | |
| 2748 for (x = 0; x < dst_width; ++x) { | |
| 2749 *dst++ = *src_ptr; | |
| 2750 src_ptr += 2; | |
| 2751 } | |
| 2752 } | |
| 2753 | |
| 2754 static void ScaleRowDown2Int_C(const uint8* src_ptr, int src_stride, | |
| 2755 uint8* dst, int dst_width) { | |
| 2756 int x; | |
| 2757 for (x = 0; x < dst_width; ++x) { | |
| 2758 *dst++ = (src_ptr[0] + src_ptr[1] + | |
| 2759 src_ptr[src_stride] + src_ptr[src_stride + 1] + 2) >> 2; | |
| 2760 src_ptr += 2; | |
| 2761 } | |
| 2762 } | |
| 2763 | |
| 2764 static void ScaleRowDown4_C(const uint8* src_ptr, int src_stride, | |
| 2765 uint8* dst, int dst_width) { | |
| 2766 int x; | |
| 2767 for (x = 0; x < dst_width; ++x) { | |
| 2768 *dst++ = *src_ptr; | |
| 2769 src_ptr += 4; | |
| 2770 } | |
| 2771 } | |
| 2772 | |
| 2773 static void ScaleRowDown4Int_C(const uint8* src_ptr, int src_stride, | |
| 2774 uint8* dst, int dst_width) { | |
| 2775 int x; | |
| 2776 for (x = 0; x < dst_width; ++x) { | |
| 2777 *dst++ = (src_ptr[0] + src_ptr[1] + src_ptr[2] + src_ptr[3] + | |
| 2778 src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + | |
| 2779 src_ptr[src_stride + 2] + src_ptr[src_stride + 3] + | |
| 2780 src_ptr[src_stride * 2 + 0] + src_ptr[src_stride * 2 + 1] + | |
| 2781 src_ptr[src_stride * 2 + 2] + src_ptr[src_stride * 2 + 3] + | |
| 2782 src_ptr[src_stride * 3 + 0] + src_ptr[src_stride * 3 + 1] + | |
| 2783 src_ptr[src_stride * 3 + 2] + src_ptr[src_stride * 3 + 3] + | |
| 2784 8) >> 4; | |
| 2785 src_ptr += 4; | |
| 2786 } | |
| 2787 } | |
| 2788 | |
| 2789 // 640 output pixels is enough to allow 5120 input pixels with 1/8 scale down. | |
| 2790 // Keeping the total buffer under 4096 bytes avoids a stackcheck, saving 4% cpu. | |
| 2791 // The following 2 lines cause error on Windows. | |
| 2792 //static const int kMaxOutputWidth = 640; | |
| 2793 //static const int kMaxRow12 = 1280; //kMaxOutputWidth * 2; | |
| 2794 #define kMaxOutputWidth 640 | |
| 2795 #define kMaxRow12 1280 | |
| 2796 | |
| 2797 static void ScaleRowDown8_C(const uint8* src_ptr, int src_stride, | |
| 2798 uint8* dst, int dst_width) { | |
| 2799 int x; | |
| 2800 for (x = 0; x < dst_width; ++x) { | |
| 2801 *dst++ = *src_ptr; | |
| 2802 src_ptr += 8; | |
| 2803 } | |
| 2804 } | |
| 2805 | |
| 2806 // Note calling code checks width is less than max and if not | |
| 2807 // uses ScaleRowDown8_C instead. | |
| 2808 static void ScaleRowDown8Int_C(const uint8* src_ptr, int src_stride, | |
| 2809 uint8* dst, int dst_width) { | |
| 2810 ALIGN16(uint8 src_row[kMaxRow12 * 2]); | |
| 2811 assert(dst_width <= kMaxOutputWidth); | |
| 2812 ScaleRowDown4Int_C(src_ptr, src_stride, src_row, dst_width * 2); | |
| 2813 ScaleRowDown4Int_C(src_ptr + src_stride * 4, src_stride, | |
| 2814 src_row + kMaxOutputWidth, | |
| 2815 dst_width * 2); | |
| 2816 ScaleRowDown2Int_C(src_row, kMaxOutputWidth, dst, dst_width); | |
| 2817 } | |
| 2818 | |
| 2819 static void ScaleRowDown34_C(const uint8* src_ptr, int src_stride, | |
| 2820 uint8* dst, int dst_width) { | |
| 2821 uint8* dend; | |
| 2822 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2823 dend = dst + dst_width; | |
| 2824 do { | |
| 2825 dst[0] = src_ptr[0]; | |
| 2826 dst[1] = src_ptr[1]; | |
| 2827 dst[2] = src_ptr[3]; | |
| 2828 dst += 3; | |
| 2829 src_ptr += 4; | |
| 2830 } while (dst < dend); | |
| 2831 } | |
| 2832 | |
| 2833 // Filter rows 0 and 1 together, 3 : 1 | |
| 2834 static void ScaleRowDown34_0_Int_C(const uint8* src_ptr, int src_stride, | |
| 2835 uint8* d, int dst_width) { | |
| 2836 uint8* dend; | |
| 2837 const uint8* s; | |
| 2838 const uint8* t; | |
| 2839 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2840 dend = d + dst_width; | |
| 2841 s = src_ptr; | |
| 2842 t = src_ptr + src_stride; | |
| 2843 do { | |
| 2844 uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2; | |
| 2845 uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1; | |
| 2846 uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2; | |
| 2847 uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2; | |
| 2848 uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1; | |
| 2849 uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2; | |
| 2850 d[0] = (a0 * 3 + b0 + 2) >> 2; | |
| 2851 d[1] = (a1 * 3 + b1 + 2) >> 2; | |
| 2852 d[2] = (a2 * 3 + b2 + 2) >> 2; | |
| 2853 d += 3; | |
| 2854 s += 4; | |
| 2855 t += 4; | |
| 2856 } while (d < dend); | |
| 2857 } | |
| 2858 | |
| 2859 // Filter rows 1 and 2 together, 1 : 1 | |
| 2860 static void ScaleRowDown34_1_Int_C(const uint8* src_ptr, int src_stride, | |
| 2861 uint8* d, int dst_width) { | |
| 2862 uint8* dend; | |
| 2863 const uint8* s; | |
| 2864 const uint8* t; | |
| 2865 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2866 dend = d + dst_width; | |
| 2867 s = src_ptr; | |
| 2868 t = src_ptr + src_stride; | |
| 2869 do { | |
| 2870 uint8 a0 = (s[0] * 3 + s[1] * 1 + 2) >> 2; | |
| 2871 uint8 a1 = (s[1] * 1 + s[2] * 1 + 1) >> 1; | |
| 2872 uint8 a2 = (s[2] * 1 + s[3] * 3 + 2) >> 2; | |
| 2873 uint8 b0 = (t[0] * 3 + t[1] * 1 + 2) >> 2; | |
| 2874 uint8 b1 = (t[1] * 1 + t[2] * 1 + 1) >> 1; | |
| 2875 uint8 b2 = (t[2] * 1 + t[3] * 3 + 2) >> 2; | |
| 2876 d[0] = (a0 + b0 + 1) >> 1; | |
| 2877 d[1] = (a1 + b1 + 1) >> 1; | |
| 2878 d[2] = (a2 + b2 + 1) >> 1; | |
| 2879 d += 3; | |
| 2880 s += 4; | |
| 2881 t += 4; | |
| 2882 } while (d < dend); | |
| 2883 } | |
| 2884 | |
| 2885 #if defined(HAS_SCALEFILTERROWS_SSE2) | |
| 2886 // Filter row to 3/4 | |
| 2887 static void ScaleFilterCols34_C(uint8* dst_ptr, const uint8* src_ptr, | |
| 2888 int dst_width) { | |
| 2889 uint8* dend; | |
| 2890 const uint8* s; | |
| 2891 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2892 dend = dst_ptr + dst_width; | |
| 2893 s = src_ptr; | |
| 2894 do { | |
| 2895 dst_ptr[0] = (s[0] * 3 + s[1] * 1 + 2) >> 2; | |
| 2896 dst_ptr[1] = (s[1] * 1 + s[2] * 1 + 1) >> 1; | |
| 2897 dst_ptr[2] = (s[2] * 1 + s[3] * 3 + 2) >> 2; | |
| 2898 dst_ptr += 3; | |
| 2899 s += 4; | |
| 2900 } while (dst_ptr < dend); | |
| 2901 } | |
| 2902 #endif | |
| 2903 | |
| 2904 static void ScaleFilterCols_C(uint8* dst_ptr, const uint8* src_ptr, | |
| 2905 int dst_width, int dx) { | |
| 2906 int x = 0; | |
| 2907 int j; | |
| 2908 for (j = 0; j < dst_width; ++j) { | |
| 2909 int xi = x >> 16; | |
| 2910 int xf1 = x & 0xffff; | |
| 2911 int xf0 = 65536 - xf1; | |
| 2912 | |
| 2913 *dst_ptr++ = (src_ptr[xi] * xf0 + src_ptr[xi + 1] * xf1) >> 16; | |
| 2914 x += dx; | |
| 2915 } | |
| 2916 } | |
| 2917 | |
| 2918 //Not work on Windows | |
| 2919 //static const int kMaxInputWidth = 2560; | |
| 2920 #define kMaxInputWidth 2560 | |
| 2921 #if defined(HAS_SCALEFILTERROWS_SSE2) | |
| 2922 #define HAS_SCALEROWDOWN34_SSE2 | |
| 2923 // Filter rows 0 and 1 together, 3 : 1 | |
| 2924 static void ScaleRowDown34_0_Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 2925 uint8* dst_ptr, int dst_width) { | |
| 2926 ALIGN16(uint8 row[kMaxInputWidth]); | |
| 2927 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2928 ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 4); | |
| 2929 ScaleFilterCols34_C(dst_ptr, row, dst_width); | |
| 2930 } | |
| 2931 | |
| 2932 // Filter rows 1 and 2 together, 1 : 1 | |
| 2933 static void ScaleRowDown34_1_Int_SSE2(const uint8* src_ptr, int src_stride, | |
| 2934 uint8* dst_ptr, int dst_width) { | |
| 2935 ALIGN16(uint8 row[kMaxInputWidth]); | |
| 2936 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2937 ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 2); | |
| 2938 ScaleFilterCols34_C(dst_ptr, row, dst_width); | |
| 2939 } | |
| 2940 #endif | |
| 2941 | |
| 2942 static void ScaleRowDown38_C(const uint8* src_ptr, int src_stride, | |
| 2943 uint8* dst, int dst_width) { | |
| 2944 int x; | |
| 2945 assert(dst_width % 3 == 0); | |
| 2946 for (x = 0; x < dst_width; x += 3) { | |
| 2947 dst[0] = src_ptr[0]; | |
| 2948 dst[1] = src_ptr[3]; | |
| 2949 dst[2] = src_ptr[6]; | |
| 2950 dst += 3; | |
| 2951 src_ptr += 8; | |
| 2952 } | |
| 2953 } | |
| 2954 | |
| 2955 // 8x3 -> 3x1 | |
| 2956 static void ScaleRowDown38_3_Int_C(const uint8* src_ptr, int src_stride, | |
| 2957 uint8* dst_ptr, int dst_width) { | |
| 2958 int i; | |
| 2959 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2960 for (i = 0; i < dst_width; i+=3) { | |
| 2961 dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + | |
| 2962 src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + | |
| 2963 src_ptr[src_stride + 2] + src_ptr[src_stride * 2 + 0] + | |
| 2964 src_ptr[src_stride * 2 + 1] + src_ptr[src_stride * 2 + 2]) * | |
| 2965 (65536 / 9) >> 16; | |
| 2966 dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + | |
| 2967 src_ptr[src_stride + 3] + src_ptr[src_stride + 4] + | |
| 2968 src_ptr[src_stride + 5] + src_ptr[src_stride * 2 + 3] + | |
| 2969 src_ptr[src_stride * 2 + 4] + src_ptr[src_stride * 2 + 5]) * | |
| 2970 (65536 / 9) >> 16; | |
| 2971 dst_ptr[2] = (src_ptr[6] + src_ptr[7] + | |
| 2972 src_ptr[src_stride + 6] + src_ptr[src_stride + 7] + | |
| 2973 src_ptr[src_stride * 2 + 6] + src_ptr[src_stride * 2 + 7]) * | |
| 2974 (65536 / 6) >> 16; | |
| 2975 src_ptr += 8; | |
| 2976 dst_ptr += 3; | |
| 2977 } | |
| 2978 } | |
| 2979 | |
| 2980 // 8x2 -> 3x1 | |
| 2981 static void ScaleRowDown38_2_Int_C(const uint8* src_ptr, int src_stride, | |
| 2982 uint8* dst_ptr, int dst_width) { | |
| 2983 int i; | |
| 2984 assert((dst_width % 3 == 0) && (dst_width > 0)); | |
| 2985 for (i = 0; i < dst_width; i+=3) { | |
| 2986 dst_ptr[0] = (src_ptr[0] + src_ptr[1] + src_ptr[2] + | |
| 2987 src_ptr[src_stride + 0] + src_ptr[src_stride + 1] + | |
| 2988 src_ptr[src_stride + 2]) * (65536 / 6) >> 16; | |
| 2989 dst_ptr[1] = (src_ptr[3] + src_ptr[4] + src_ptr[5] + | |
| 2990 src_ptr[src_stride + 3] + src_ptr[src_stride + 4] + | |
| 2991 src_ptr[src_stride + 5]) * (65536 / 6) >> 16; | |
| 2992 dst_ptr[2] = (src_ptr[6] + src_ptr[7] + | |
| 2993 src_ptr[src_stride + 6] + src_ptr[src_stride + 7]) * | |
| 2994 (65536 / 4) >> 16; | |
| 2995 src_ptr += 8; | |
| 2996 dst_ptr += 3; | |
| 2997 } | |
| 2998 } | |
| 2999 | |
| 3000 // C version 8x2 -> 8x1 | |
| 3001 static void ScaleFilterRows_C(uint8* dst_ptr, | |
| 3002 const uint8* src_ptr, int src_stride, | |
| 3003 int dst_width, int source_y_fraction) { | |
| 3004 int y1_fraction; | |
| 3005 int y0_fraction; | |
| 3006 const uint8* src_ptr1; | |
| 3007 uint8* end; | |
| 3008 assert(dst_width > 0); | |
| 3009 y1_fraction = source_y_fraction; | |
| 3010 y0_fraction = 256 - y1_fraction; | |
| 3011 src_ptr1 = src_ptr + src_stride; | |
| 3012 end = dst_ptr + dst_width; | |
| 3013 do { | |
| 3014 dst_ptr[0] = (src_ptr[0] * y0_fraction + src_ptr1[0] * y1_fraction) >> 8; | |
| 3015 dst_ptr[1] = (src_ptr[1] * y0_fraction + src_ptr1[1] * y1_fraction) >> 8; | |
| 3016 dst_ptr[2] = (src_ptr[2] * y0_fraction + src_ptr1[2] * y1_fraction) >> 8; | |
| 3017 dst_ptr[3] = (src_ptr[3] * y0_fraction + src_ptr1[3] * y1_fraction) >> 8; | |
| 3018 dst_ptr[4] = (src_ptr[4] * y0_fraction + src_ptr1[4] * y1_fraction) >> 8; | |
| 3019 dst_ptr[5] = (src_ptr[5] * y0_fraction + src_ptr1[5] * y1_fraction) >> 8; | |
| 3020 dst_ptr[6] = (src_ptr[6] * y0_fraction + src_ptr1[6] * y1_fraction) >> 8; | |
| 3021 dst_ptr[7] = (src_ptr[7] * y0_fraction + src_ptr1[7] * y1_fraction) >> 8; | |
| 3022 src_ptr += 8; | |
| 3023 src_ptr1 += 8; | |
| 3024 dst_ptr += 8; | |
| 3025 } while (dst_ptr < end); | |
| 3026 dst_ptr[0] = dst_ptr[-1]; | |
| 3027 } | |
| 3028 | |
| 3029 void ScaleAddRows_C(const uint8* src_ptr, int src_stride, | |
| 3030 uint16* dst_ptr, int src_width, int src_height) { | |
| 3031 int x,y; | |
| 3032 assert(src_width > 0); | |
| 3033 assert(src_height > 0); | |
| 3034 for (x = 0; x < src_width; ++x) { | |
| 3035 const uint8* s = src_ptr + x; | |
| 3036 int sum = 0; | |
| 3037 for (y = 0; y < src_height; ++y) { | |
| 3038 sum += s[0]; | |
| 3039 s += src_stride; | |
| 3040 } | |
| 3041 dst_ptr[x] = sum; | |
| 3042 } | |
| 3043 } | |
| 3044 | |
| 3045 /** | |
| 3046 * Scale plane, 1/2 | |
| 3047 * | |
| 3048 * This is an optimized version for scaling down a plane to 1/2 of | |
| 3049 * its original size. | |
| 3050 * | |
| 3051 */ | |
| 3052 static void ScalePlaneDown2(int src_width, int src_height, | |
| 3053 int dst_width, int dst_height, | |
| 3054 int src_stride, int dst_stride, | |
| 3055 const uint8* src_ptr, uint8* dst_ptr, | |
| 3056 FilterModeEnum filtering) { | |
| 3057 void (*ScaleRowDown2)(const uint8* src_ptr, int src_stride, | |
| 3058 uint8* dst_ptr, int dst_width); | |
| 3059 assert(IS_ALIGNED(src_width, 2)); | |
| 3060 assert(IS_ALIGNED(src_height, 2)); | |
| 3061 | |
| 3062 #if defined(HAS_SCALEROWDOWN2_NEON) | |
| 3063 if (TestCpuFlag(kCpuHasNEON) && | |
| 3064 IS_ALIGNED(dst_width, 16)) { | |
| 3065 ScaleRowDown2 = filtering ? ScaleRowDown2Int_NEON : ScaleRowDown2_NEON; | |
| 3066 } else | |
| 3067 #endif | |
| 3068 #if defined(HAS_SCALEROWDOWN2_SSE2) | |
| 3069 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3070 IS_ALIGNED(dst_width, 16) && | |
| 3071 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && | |
| 3072 IS_ALIGNED(dst_ptr, 16) && IS_ALIGNED(dst_stride, 16)) { | |
| 3073 ScaleRowDown2 = filtering ? ScaleRowDown2Int_SSE2 : ScaleRowDown2_SSE2; | |
| 3074 } else | |
| 3075 #endif | |
| 3076 { | |
| 3077 ScaleRowDown2 = filtering ? ScaleRowDown2Int_C : ScaleRowDown2_C; | |
| 3078 } | |
| 3079 | |
| 3080 { | |
| 3081 int y; | |
| 3082 for (y = 0; y < dst_height; ++y) { | |
| 3083 ScaleRowDown2(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3084 src_ptr += (src_stride << 1); | |
| 3085 dst_ptr += dst_stride; | |
| 3086 } | |
| 3087 } | |
| 3088 } | |
| 3089 | |
| 3090 /** | |
| 3091 * Scale plane, 1/4 | |
| 3092 * | |
| 3093 * This is an optimized version for scaling down a plane to 1/4 of | |
| 3094 * its original size. | |
| 3095 */ | |
| 3096 static void ScalePlaneDown4(int src_width, int src_height, | |
| 3097 int dst_width, int dst_height, | |
| 3098 int src_stride, int dst_stride, | |
| 3099 const uint8* src_ptr, uint8* dst_ptr, | |
| 3100 FilterModeEnum filtering) { | |
| 3101 void (*ScaleRowDown4)(const uint8* src_ptr, int src_stride, | |
| 3102 uint8* dst_ptr, int dst_width); | |
| 3103 assert(IS_ALIGNED(src_width, 4)); | |
| 3104 assert(IS_ALIGNED(src_height, 4)); | |
| 3105 | |
| 3106 #if defined(HAS_SCALEROWDOWN4_NEON) | |
| 3107 if (TestCpuFlag(kCpuHasNEON) && | |
| 3108 IS_ALIGNED(dst_width, 4)) { | |
| 3109 ScaleRowDown4 = filtering ? ScaleRowDown4Int_NEON : ScaleRowDown4_NEON; | |
| 3110 } else | |
| 3111 #endif | |
| 3112 #if defined(HAS_SCALEROWDOWN4_SSE2) | |
| 3113 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3114 IS_ALIGNED(dst_width, 8) && | |
| 3115 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && | |
| 3116 IS_ALIGNED(dst_ptr, 8) && IS_ALIGNED(dst_stride, 8)) { | |
| 3117 ScaleRowDown4 = filtering ? ScaleRowDown4Int_SSE2 : ScaleRowDown4_SSE2; | |
| 3118 } else | |
| 3119 #endif | |
| 3120 { | |
| 3121 ScaleRowDown4 = filtering ? ScaleRowDown4Int_C : ScaleRowDown4_C; | |
| 3122 } | |
| 3123 | |
| 3124 { | |
| 3125 int y; | |
| 3126 for (y = 0; y < dst_height; ++y) { | |
| 3127 ScaleRowDown4(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3128 src_ptr += (src_stride << 2); | |
| 3129 dst_ptr += dst_stride; | |
| 3130 } | |
| 3131 } | |
| 3132 } | |
| 3133 | |
| 3134 /** | |
| 3135 * Scale plane, 1/8 | |
| 3136 * | |
| 3137 * This is an optimized version for scaling down a plane to 1/8 | |
| 3138 * of its original size. | |
| 3139 * | |
| 3140 */ | |
| 3141 static void ScalePlaneDown8(int src_width, int src_height, | |
| 3142 int dst_width, int dst_height, | |
| 3143 int src_stride, int dst_stride, | |
| 3144 const uint8* src_ptr, uint8* dst_ptr, | |
| 3145 FilterModeEnum filtering) { | |
| 3146 void (*ScaleRowDown8)(const uint8* src_ptr, int src_stride, | |
| 3147 uint8* dst_ptr, int dst_width); | |
| 3148 assert(IS_ALIGNED(src_width, 8)); | |
| 3149 assert(IS_ALIGNED(src_height, 8)); | |
| 3150 | |
| 3151 #if defined(HAS_SCALEROWDOWN8_SSE2) | |
| 3152 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3153 IS_ALIGNED(dst_width, 4) && | |
| 3154 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && | |
| 3155 IS_ALIGNED(dst_ptr, 4) && IS_ALIGNED(dst_stride, 4)) { | |
| 3156 ScaleRowDown8 = filtering ? ScaleRowDown8Int_SSE2 : ScaleRowDown8_SSE2; | |
| 3157 } else | |
| 3158 #endif | |
| 3159 { | |
| 3160 ScaleRowDown8 = filtering && (dst_width <= kMaxOutputWidth) ? | |
| 3161 ScaleRowDown8Int_C : ScaleRowDown8_C; | |
| 3162 } | |
| 3163 | |
| 3164 { | |
| 3165 int y; | |
| 3166 for (y = 0; y < dst_height; ++y) { | |
| 3167 ScaleRowDown8(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3168 src_ptr += (src_stride << 3); | |
| 3169 dst_ptr += dst_stride; | |
| 3170 } | |
| 3171 } | |
| 3172 } | |
| 3173 | |
| 3174 /** | |
| 3175 * Scale plane down, 3/4 | |
| 3176 * | |
| 3177 * Provided by Frank Barchard (fbarchard@google.com) | |
| 3178 * | |
| 3179 */ | |
| 3180 static void ScalePlaneDown34(int src_width, int src_height, | |
| 3181 int dst_width, int dst_height, | |
| 3182 int src_stride, int dst_stride, | |
| 3183 const uint8* src_ptr, uint8* dst_ptr, | |
| 3184 FilterModeEnum filtering) { | |
| 3185 void (*ScaleRowDown34_0)(const uint8* src_ptr, int src_stride, | |
| 3186 uint8* dst_ptr, int dst_width); | |
| 3187 void (*ScaleRowDown34_1)(const uint8* src_ptr, int src_stride, | |
| 3188 uint8* dst_ptr, int dst_width); | |
| 3189 assert(dst_width % 3 == 0); | |
| 3190 #if defined(HAS_SCALEROWDOWN34_NEON) | |
| 3191 if (TestCpuFlag(kCpuHasNEON) && | |
| 3192 (dst_width % 24 == 0)) { | |
| 3193 if (!filtering) { | |
| 3194 ScaleRowDown34_0 = ScaleRowDown34_NEON; | |
| 3195 ScaleRowDown34_1 = ScaleRowDown34_NEON; | |
| 3196 } else { | |
| 3197 ScaleRowDown34_0 = ScaleRowDown34_0_Int_NEON; | |
| 3198 ScaleRowDown34_1 = ScaleRowDown34_1_Int_NEON; | |
| 3199 } | |
| 3200 } else | |
| 3201 #endif | |
| 3202 | |
| 3203 #if defined(HAS_SCALEROWDOWN34_SSSE3) | |
| 3204 if (TestCpuFlag(kCpuHasSSSE3) && | |
| 3205 (dst_width % 24 == 0) && | |
| 3206 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(src_stride, 16) && | |
| 3207 IS_ALIGNED(dst_ptr, 8) && IS_ALIGNED(dst_stride, 8)) { | |
| 3208 if (!filtering) { | |
| 3209 ScaleRowDown34_0 = ScaleRowDown34_SSSE3; | |
| 3210 ScaleRowDown34_1 = ScaleRowDown34_SSSE3; | |
| 3211 } else { | |
| 3212 ScaleRowDown34_0 = ScaleRowDown34_0_Int_SSSE3; | |
| 3213 ScaleRowDown34_1 = ScaleRowDown34_1_Int_SSSE3; | |
| 3214 } | |
| 3215 } else | |
| 3216 #endif | |
| 3217 #if defined(HAS_SCALEROWDOWN34_SSE2) | |
| 3218 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3219 (dst_width % 24 == 0) && IS_ALIGNED(src_stride, 16) && | |
| 3220 IS_ALIGNED(dst_stride, 8) && | |
| 3221 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(dst_ptr, 8) && | |
| 3222 filtering) { | |
| 3223 ScaleRowDown34_0 = ScaleRowDown34_0_Int_SSE2; | |
| 3224 ScaleRowDown34_1 = ScaleRowDown34_1_Int_SSE2; | |
| 3225 } else | |
| 3226 #endif | |
| 3227 { | |
| 3228 if (!filtering) { | |
| 3229 ScaleRowDown34_0 = ScaleRowDown34_C; | |
| 3230 ScaleRowDown34_1 = ScaleRowDown34_C; | |
| 3231 } else { | |
| 3232 ScaleRowDown34_0 = ScaleRowDown34_0_Int_C; | |
| 3233 ScaleRowDown34_1 = ScaleRowDown34_1_Int_C; | |
| 3234 } | |
| 3235 } | |
| 3236 { | |
| 3237 int src_row = 0; | |
| 3238 int y; | |
| 3239 for (y = 0; y < dst_height; ++y) { | |
| 3240 switch (src_row) { | |
| 3241 case 0: | |
| 3242 ScaleRowDown34_0(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3243 break; | |
| 3244 | |
| 3245 case 1: | |
| 3246 ScaleRowDown34_1(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3247 break; | |
| 3248 | |
| 3249 case 2: | |
| 3250 ScaleRowDown34_0(src_ptr + src_stride, -src_stride, | |
| 3251 dst_ptr, dst_width); | |
| 3252 break; | |
| 3253 } | |
| 3254 ++src_row; | |
| 3255 src_ptr += src_stride; | |
| 3256 dst_ptr += dst_stride; | |
| 3257 if (src_row >= 3) { | |
| 3258 src_ptr += src_stride; | |
| 3259 src_row = 0; | |
| 3260 } | |
| 3261 } | |
| 3262 } | |
| 3263 } | |
| 3264 | |
| 3265 /** | |
| 3266 * Scale plane, 3/8 | |
| 3267 * | |
| 3268 * This is an optimized version for scaling down a plane to 3/8 | |
| 3269 * of its original size. | |
| 3270 * | |
| 3271 * Reduces 16x3 to 6x1 | |
| 3272 */ | |
| 3273 static void ScalePlaneDown38(int src_width, int src_height, | |
| 3274 int dst_width, int dst_height, | |
| 3275 int src_stride, int dst_stride, | |
| 3276 const uint8* src_ptr, uint8* dst_ptr, | |
| 3277 FilterModeEnum filtering) { | |
| 3278 void (*ScaleRowDown38_3)(const uint8* src_ptr, int src_stride, | |
| 3279 uint8* dst_ptr, int dst_width); | |
| 3280 void (*ScaleRowDown38_2)(const uint8* src_ptr, int src_stride, | |
| 3281 uint8* dst_ptr, int dst_width); | |
| 3282 assert(dst_width % 3 == 0); | |
| 3283 #if defined(HAS_SCALEROWDOWN38_NEON) | |
| 3284 if (TestCpuFlag(kCpuHasNEON) && | |
| 3285 (dst_width % 12 == 0)) { | |
| 3286 if (!filtering) { | |
| 3287 ScaleRowDown38_3 = ScaleRowDown38_NEON; | |
| 3288 ScaleRowDown38_2 = ScaleRowDown38_NEON; | |
| 3289 } else { | |
| 3290 ScaleRowDown38_3 = ScaleRowDown38_3_Int_NEON; | |
| 3291 ScaleRowDown38_2 = ScaleRowDown38_2_Int_NEON; | |
| 3292 } | |
| 3293 } else | |
| 3294 #endif | |
| 3295 | |
| 3296 #if defined(HAS_SCALEROWDOWN38_SSSE3) | |
| 3297 if (TestCpuFlag(kCpuHasSSSE3) && | |
| 3298 (dst_width % 24 == 0) && IS_ALIGNED(src_stride, 16) && | |
| 3299 IS_ALIGNED(dst_stride, 8) && | |
| 3300 IS_ALIGNED(src_ptr, 16) && IS_ALIGNED(dst_ptr, 8)) { | |
| 3301 if (!filtering) { | |
| 3302 ScaleRowDown38_3 = ScaleRowDown38_SSSE3; | |
| 3303 ScaleRowDown38_2 = ScaleRowDown38_SSSE3; | |
| 3304 } else { | |
| 3305 ScaleRowDown38_3 = ScaleRowDown38_3_Int_SSSE3; | |
| 3306 ScaleRowDown38_2 = ScaleRowDown38_2_Int_SSSE3; | |
| 3307 } | |
| 3308 } else | |
| 3309 #endif | |
| 3310 { | |
| 3311 if (!filtering) { | |
| 3312 ScaleRowDown38_3 = ScaleRowDown38_C; | |
| 3313 ScaleRowDown38_2 = ScaleRowDown38_C; | |
| 3314 } else { | |
| 3315 ScaleRowDown38_3 = ScaleRowDown38_3_Int_C; | |
| 3316 ScaleRowDown38_2 = ScaleRowDown38_2_Int_C; | |
| 3317 } | |
| 3318 } | |
| 3319 { | |
| 3320 int src_row = 0; | |
| 3321 int y; | |
| 3322 for (y = 0; y < dst_height; ++y) { | |
| 3323 switch (src_row) { | |
| 3324 case 0: | |
| 3325 case 1: | |
| 3326 ScaleRowDown38_3(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3327 src_ptr += src_stride * 3; | |
| 3328 ++src_row; | |
| 3329 break; | |
| 3330 | |
| 3331 case 2: | |
| 3332 ScaleRowDown38_2(src_ptr, src_stride, dst_ptr, dst_width); | |
| 3333 src_ptr += src_stride * 2; | |
| 3334 src_row = 0; | |
| 3335 break; | |
| 3336 } | |
| 3337 dst_ptr += dst_stride; | |
| 3338 } | |
| 3339 } | |
| 3340 } | |
| 3341 | |
| 3342 __inline static uint32 SumBox(int iboxwidth, int iboxheight, | |
| 3343 int src_stride, const uint8* src_ptr) { | |
| 3344 int x, y; | |
| 3345 uint32 sum; | |
| 3346 assert(iboxwidth > 0); | |
| 3347 assert(iboxheight > 0); | |
| 3348 sum = 0u; | |
| 3349 for (y = 0; y < iboxheight; ++y) { | |
| 3350 for (x = 0; x < iboxwidth; ++x) { | |
| 3351 sum += src_ptr[x]; | |
| 3352 } | |
| 3353 src_ptr += src_stride; | |
| 3354 } | |
| 3355 return sum; | |
| 3356 } | |
| 3357 | |
| 3358 static void ScalePlaneBoxRow(int dst_width, int boxheight, | |
| 3359 int dx, int src_stride, | |
| 3360 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3361 int x = 0; | |
| 3362 int i; | |
| 3363 for (i = 0; i < dst_width; ++i) { | |
| 3364 int ix = x >> 16; | |
| 3365 int boxwidth; | |
| 3366 x += dx; | |
| 3367 boxwidth = (x >> 16) - ix; | |
| 3368 *dst_ptr++ = SumBox(boxwidth, boxheight, src_stride, src_ptr + ix) / | |
| 3369 (boxwidth * boxheight); | |
| 3370 } | |
| 3371 } | |
| 3372 | |
| 3373 __inline static uint32 SumPixels(int iboxwidth, const uint16* src_ptr) { | |
| 3374 uint32 sum; | |
| 3375 int x; | |
| 3376 assert(iboxwidth > 0); | |
| 3377 sum = 0u; | |
| 3378 for (x = 0; x < iboxwidth; ++x) { | |
| 3379 sum += src_ptr[x]; | |
| 3380 } | |
| 3381 return sum; | |
| 3382 } | |
| 3383 | |
| 3384 static void ScaleAddCols2_C(int dst_width, int boxheight, int dx, | |
| 3385 const uint16* src_ptr, uint8* dst_ptr) { | |
| 3386 int scaletbl[2]; | |
| 3387 int minboxwidth = (dx >> 16); | |
| 3388 scaletbl[0] = 65536 / (minboxwidth * boxheight); | |
| 3389 scaletbl[1] = 65536 / ((minboxwidth + 1) * boxheight); | |
| 3390 { | |
| 3391 int *scaleptr = scaletbl - minboxwidth; | |
| 3392 int x = 0; | |
| 3393 int i; | |
| 3394 for (i = 0; i < dst_width; ++i) { | |
| 3395 int ix = x >> 16; | |
| 3396 int boxwidth; | |
| 3397 x += dx; | |
| 3398 boxwidth = (x >> 16) - ix; | |
| 3399 *dst_ptr++ = SumPixels(boxwidth, src_ptr + ix) * scaleptr[boxwidth] >> 16; | |
| 3400 } | |
| 3401 } | |
| 3402 } | |
| 3403 | |
| 3404 static void ScaleAddCols1_C(int dst_width, int boxheight, int dx, | |
| 3405 const uint16* src_ptr, uint8* dst_ptr) { | |
| 3406 int boxwidth = (dx >> 16); | |
| 3407 int scaleval = 65536 / (boxwidth * boxheight); | |
| 3408 int x = 0; | |
| 3409 int i; | |
| 3410 for (i = 0; i < dst_width; ++i) { | |
| 3411 *dst_ptr++ = SumPixels(boxwidth, src_ptr + x) * scaleval >> 16; | |
| 3412 x += boxwidth; | |
| 3413 } | |
| 3414 } | |
| 3415 | |
| 3416 /** | |
| 3417 * Scale plane down to any dimensions, with interpolation. | |
| 3418 * (boxfilter). | |
| 3419 * | |
| 3420 * Same method as SimpleScale, which is fixed point, outputting | |
| 3421 * one pixel of destination using fixed point (16.16) to step | |
| 3422 * through source, sampling a box of pixel with simple | |
| 3423 * averaging. | |
| 3424 */ | |
| 3425 static void ScalePlaneBox(int src_width, int src_height, | |
| 3426 int dst_width, int dst_height, | |
| 3427 int src_stride, int dst_stride, | |
| 3428 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3429 int dx, dy; | |
| 3430 assert(dst_width > 0); | |
| 3431 assert(dst_height > 0); | |
| 3432 dy = (src_height << 16) / dst_height; | |
| 3433 dx = (src_width << 16) / dst_width; | |
| 3434 if (!IS_ALIGNED(src_width, 16) || (src_width > kMaxInputWidth) || | |
| 3435 dst_height * 2 > src_height) { | |
| 3436 uint8* dst = dst_ptr; | |
| 3437 int dy = (src_height << 16) / dst_height; | |
| 3438 int dx = (src_width << 16) / dst_width; | |
| 3439 int y = 0; | |
| 3440 int j; | |
| 3441 for (j = 0; j < dst_height; ++j) { | |
| 3442 int iy = y >> 16; | |
| 3443 const uint8* const src = src_ptr + iy * src_stride; | |
| 3444 int boxheight; | |
| 3445 y += dy; | |
| 3446 if (y > (src_height << 16)) { | |
| 3447 y = (src_height << 16); | |
| 3448 } | |
| 3449 boxheight = (y >> 16) - iy; | |
| 3450 ScalePlaneBoxRow(dst_width, boxheight, | |
| 3451 dx, src_stride, | |
| 3452 src, dst); | |
| 3453 | |
| 3454 dst += dst_stride; | |
| 3455 } | |
| 3456 } else { | |
| 3457 ALIGN16(uint16 row[kMaxInputWidth]); | |
| 3458 void (*ScaleAddRows)(const uint8* src_ptr, int src_stride, | |
| 3459 uint16* dst_ptr, int src_width, int src_height); | |
| 3460 void (*ScaleAddCols)(int dst_width, int boxheight, int dx, | |
| 3461 const uint16* src_ptr, uint8* dst_ptr); | |
| 3462 #if defined(HAS_SCALEADDROWS_SSE2) | |
| 3463 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3464 IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && | |
| 3465 IS_ALIGNED(src_width, 16)) { | |
| 3466 ScaleAddRows = ScaleAddRows_SSE2; | |
| 3467 } else | |
| 3468 #endif | |
| 3469 { | |
| 3470 ScaleAddRows = ScaleAddRows_C; | |
| 3471 } | |
| 3472 if (dx & 0xffff) { | |
| 3473 ScaleAddCols = ScaleAddCols2_C; | |
| 3474 } else { | |
| 3475 ScaleAddCols = ScaleAddCols1_C; | |
| 3476 } | |
| 3477 | |
| 3478 { | |
| 3479 int y = 0; | |
| 3480 int j; | |
| 3481 for (j = 0; j < dst_height; ++j) { | |
| 3482 int iy = y >> 16; | |
| 3483 const uint8* const src = src_ptr + iy * src_stride; | |
| 3484 int boxheight; | |
| 3485 y += dy; | |
| 3486 if (y > (src_height << 16)) { | |
| 3487 y = (src_height << 16); | |
| 3488 } | |
| 3489 boxheight = (y >> 16) - iy; | |
| 3490 ScaleAddRows(src, src_stride, row, src_width, boxheight); | |
| 3491 ScaleAddCols(dst_width, boxheight, dx, row, dst_ptr); | |
| 3492 dst_ptr += dst_stride; | |
| 3493 } | |
| 3494 } | |
| 3495 } | |
| 3496 } | |
| 3497 | |
| 3498 /** | |
| 3499 * Scale plane to/from any dimensions, with interpolation. | |
| 3500 */ | |
| 3501 static void ScalePlaneBilinearSimple(int src_width, int src_height, | |
| 3502 int dst_width, int dst_height, | |
| 3503 int src_stride, int dst_stride, | |
| 3504 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3505 int i, j; | |
| 3506 uint8* dst = dst_ptr; | |
| 3507 int dx = (src_width << 16) / dst_width; | |
| 3508 int dy = (src_height << 16) / dst_height; | |
| 3509 int maxx = ((src_width - 1) << 16) - 1; | |
| 3510 int maxy = ((src_height - 1) << 16) - 1; | |
| 3511 int y = (dst_height < src_height) ? 32768 : | |
| 3512 (src_height << 16) / dst_height - 32768; | |
| 3513 for (i = 0; i < dst_height; ++i) { | |
| 3514 int cy = (y < 0) ? 0 : y; | |
| 3515 int yi = cy >> 16; | |
| 3516 int yf = cy & 0xffff; | |
| 3517 const uint8* const src = src_ptr + yi * src_stride; | |
| 3518 int x = (dst_width < src_width) ? 32768 : | |
| 3519 (src_width << 16) / dst_width - 32768; | |
| 3520 for (j = 0; j < dst_width; ++j) { | |
| 3521 int cx = (x < 0) ? 0 : x; | |
| 3522 int xi = cx >> 16; | |
| 3523 int xf = cx & 0xffff; | |
| 3524 int r0 = (src[xi] * (65536 - xf) + src[xi + 1] * xf) >> 16; | |
| 3525 int r1 = (src[xi + src_stride] * (65536 - xf) + | |
| 3526 src[xi + src_stride + 1] * xf) >> 16; | |
| 3527 *dst++ = (r0 * (65536 - yf) + r1 * yf) >> 16; | |
| 3528 x += dx; | |
| 3529 if (x > maxx) | |
| 3530 x = maxx; | |
| 3531 } | |
| 3532 dst += dst_stride - dst_width; | |
| 3533 y += dy; | |
| 3534 if (y > maxy) | |
| 3535 y = maxy; | |
| 3536 } | |
| 3537 } | |
| 3538 | |
| 3539 /** | |
| 3540 * Scale plane to/from any dimensions, with bilinear | |
| 3541 * interpolation. | |
| 3542 */ | |
| 3543 static void ScalePlaneBilinear(int src_width, int src_height, | |
| 3544 int dst_width, int dst_height, | |
| 3545 int src_stride, int dst_stride, | |
| 3546 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3547 int dy; | |
| 3548 int dx; | |
| 3549 assert(dst_width > 0); | |
| 3550 assert(dst_height > 0); | |
| 3551 dy = (src_height << 16) / dst_height; | |
| 3552 dx = (src_width << 16) / dst_width; | |
| 3553 if (!IS_ALIGNED(src_width, 8) || (src_width > kMaxInputWidth)) { | |
| 3554 ScalePlaneBilinearSimple(src_width, src_height, dst_width, dst_height, | |
| 3555 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3556 | |
| 3557 } else { | |
| 3558 ALIGN16(uint8 row[kMaxInputWidth + 1]); | |
| 3559 void (*ScaleFilterRows)(uint8* dst_ptr, const uint8* src_ptr, | |
| 3560 int src_stride, | |
| 3561 int dst_width, int source_y_fraction); | |
| 3562 void (*ScaleFilterCols)(uint8* dst_ptr, const uint8* src_ptr, | |
| 3563 int dst_width, int dx); | |
| 3564 #if defined(HAS_SCALEFILTERROWS_SSSE3) | |
| 3565 if (TestCpuFlag(kCpuHasSSSE3) && | |
| 3566 IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && | |
| 3567 IS_ALIGNED(src_width, 16)) { | |
| 3568 ScaleFilterRows = ScaleFilterRows_SSSE3; | |
| 3569 } else | |
| 3570 #endif | |
| 3571 #if defined(HAS_SCALEFILTERROWS_SSE2) | |
| 3572 if (TestCpuFlag(kCpuHasSSE2) && | |
| 3573 IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_ptr, 16) && | |
| 3574 IS_ALIGNED(src_width, 16)) { | |
| 3575 ScaleFilterRows = ScaleFilterRows_SSE2; | |
| 3576 } else | |
| 3577 #endif | |
| 3578 { | |
| 3579 ScaleFilterRows = ScaleFilterRows_C; | |
| 3580 } | |
| 3581 ScaleFilterCols = ScaleFilterCols_C; | |
| 3582 | |
| 3583 { | |
| 3584 int y = 0; | |
| 3585 int maxy = ((src_height - 1) << 16) - 1; // max is filter of last 2 rows. | |
| 3586 int j; | |
| 3587 for (j = 0; j < dst_height; ++j) { | |
| 3588 int iy = y >> 16; | |
| 3589 int fy = (y >> 8) & 255; | |
| 3590 const uint8* const src = src_ptr + iy * src_stride; | |
| 3591 ScaleFilterRows(row, src, src_stride, src_width, fy); | |
| 3592 ScaleFilterCols(dst_ptr, row, dst_width, dx); | |
| 3593 dst_ptr += dst_stride; | |
| 3594 y += dy; | |
| 3595 if (y > maxy) { | |
| 3596 y = maxy; | |
| 3597 } | |
| 3598 } | |
| 3599 } | |
| 3600 } | |
| 3601 } | |
| 3602 | |
| 3603 /** | |
| 3604 * Scale plane to/from any dimensions, without interpolation. | |
| 3605 * Fixed point math is used for performance: The upper 16 bits | |
| 3606 * of x and dx is the integer part of the source position and | |
| 3607 * the lower 16 bits are the fixed decimal part. | |
| 3608 */ | |
| 3609 static void ScalePlaneSimple(int src_width, int src_height, | |
| 3610 int dst_width, int dst_height, | |
| 3611 int src_stride, int dst_stride, | |
| 3612 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3613 uint8* dst = dst_ptr; | |
| 3614 int dx = (src_width << 16) / dst_width; | |
| 3615 int y; | |
| 3616 for (y = 0; y < dst_height; ++y) { | |
| 3617 const uint8* const src = src_ptr + (y * src_height / dst_height) * | |
| 3618 src_stride; | |
| 3619 // TODO(fbarchard): Round X coordinate by setting x=0x8000. | |
| 3620 int x = 0; | |
| 3621 int i; | |
| 3622 for (i = 0; i < dst_width; ++i) { | |
| 3623 *dst++ = src[x >> 16]; | |
| 3624 x += dx; | |
| 3625 } | |
| 3626 dst += dst_stride - dst_width; | |
| 3627 } | |
| 3628 } | |
| 3629 | |
| 3630 /** | |
| 3631 * Scale plane to/from any dimensions. | |
| 3632 */ | |
| 3633 static void ScalePlaneAnySize(int src_width, int src_height, | |
| 3634 int dst_width, int dst_height, | |
| 3635 int src_stride, int dst_stride, | |
| 3636 const uint8* src_ptr, uint8* dst_ptr, | |
| 3637 FilterModeEnum filtering) { | |
| 3638 if (!filtering) { | |
| 3639 ScalePlaneSimple(src_width, src_height, dst_width, dst_height, | |
| 3640 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3641 } else { | |
| 3642 // fall back to non-optimized version | |
| 3643 ScalePlaneBilinear(src_width, src_height, dst_width, dst_height, | |
| 3644 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3645 } | |
| 3646 } | |
| 3647 | |
| 3648 /** | |
| 3649 * Scale plane down, any size | |
| 3650 * | |
| 3651 * This is an optimized version for scaling down a plane to any size. | |
| 3652 * The current implementation is ~10 times faster compared to the | |
| 3653 * reference implementation for e.g. XGA->LowResPAL | |
| 3654 * | |
| 3655 */ | |
| 3656 static void ScalePlaneDown(int src_width, int src_height, | |
| 3657 int dst_width, int dst_height, | |
| 3658 int src_stride, int dst_stride, | |
| 3659 const uint8* src_ptr, uint8* dst_ptr, | |
| 3660 FilterModeEnum filtering) { | |
| 3661 if (!filtering) { | |
| 3662 ScalePlaneSimple(src_width, src_height, dst_width, dst_height, | |
| 3663 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3664 } else if (filtering == kFilterBilinear || src_height * 2 > dst_height) { | |
| 3665 // between 1/2x and 1x use bilinear | |
| 3666 ScalePlaneBilinear(src_width, src_height, dst_width, dst_height, | |
| 3667 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3668 } else { | |
| 3669 ScalePlaneBox(src_width, src_height, dst_width, dst_height, | |
| 3670 src_stride, dst_stride, src_ptr, dst_ptr); | |
| 3671 } | |
| 3672 } | |
| 3673 | |
| 3674 /** | |
| 3675 * Copy plane, no scaling | |
| 3676 * | |
| 3677 * This simply copies the given plane without scaling. | |
| 3678 * The current implementation is ~115 times faster | |
| 3679 * compared to the reference implementation. | |
| 3680 * | |
| 3681 */ | |
| 3682 static void CopyPlane(int src_width, int src_height, | |
| 3683 int dst_width, int dst_height, | |
| 3684 int src_stride, int dst_stride, | |
| 3685 const uint8* src_ptr, uint8* dst_ptr) { | |
| 3686 if (src_stride == src_width && dst_stride == dst_width) { | |
| 3687 // All contiguous, so can use REALLY fast path. | |
| 3688 memcpy(dst_ptr, src_ptr, src_width * src_height); | |
| 3689 } else { | |
| 3690 // Not all contiguous; must copy scanlines individually | |
| 3691 const uint8* src = src_ptr; | |
| 3692 uint8* dst = dst_ptr; | |
| 3693 int i; | |
| 3694 for (i = 0; i < src_height; ++i) { | |
| 3695 memcpy(dst, src, src_width); | |
| 3696 dst += dst_stride; | |
| 3697 src += src_stride; | |
| 3698 } | |
| 3699 } | |
| 3700 } | |
| 3701 | |
| 3702 static void ScalePlane(const uint8* src, int src_stride, | |
| 3703 int src_width, int src_height, | |
| 3704 uint8* dst, int dst_stride, | |
| 3705 int dst_width, int dst_height, | |
| 3706 FilterModeEnum filtering, int use_ref) { | |
| 3707 // Use specialized scales to improve performance for common resolutions. | |
| 3708 // For example, all the 1/2 scalings will use ScalePlaneDown2() | |
| 3709 if (dst_width == src_width && dst_height == src_height) { | |
| 3710 // Straight copy. | |
| 3711 CopyPlane(src_width, src_height, dst_width, dst_height, src_stride, | |
| 3712 dst_stride, src, dst); | |
| 3713 } else if (dst_width <= src_width && dst_height <= src_height) { | |
| 3714 // Scale down. | |
| 3715 if (use_ref) { | |
| 3716 // For testing, allow the optimized versions to be disabled. | |
| 3717 ScalePlaneDown(src_width, src_height, dst_width, dst_height, | |
| 3718 src_stride, dst_stride, src, dst, filtering); | |
| 3719 } else if (4 * dst_width == 3 * src_width && | |
| 3720 4 * dst_height == 3 * src_height) { | |
| 3721 // optimized, 3/4 | |
| 3722 ScalePlaneDown34(src_width, src_height, dst_width, dst_height, | |
| 3723 src_stride, dst_stride, src, dst, filtering); | |
| 3724 } else if (2 * dst_width == src_width && 2 * dst_height == src_height) { | |
| 3725 // optimized, 1/2 | |
| 3726 ScalePlaneDown2(src_width, src_height, dst_width, dst_height, | |
| 3727 src_stride, dst_stride, src, dst, filtering); | |
| 3728 // 3/8 rounded up for odd sized chroma height. | |
| 3729 } else if (8 * dst_width == 3 * src_width && | |
| 3730 dst_height == ((src_height * 3 + 7) / 8)) { | |
| 3731 // optimized, 3/8 | |
| 3732 ScalePlaneDown38(src_width, src_height, dst_width, dst_height, | |
| 3733 src_stride, dst_stride, src, dst, filtering); | |
| 3734 } else if (4 * dst_width == src_width && 4 * dst_height == src_height) { | |
| 3735 // optimized, 1/4 | |
| 3736 ScalePlaneDown4(src_width, src_height, dst_width, dst_height, | |
| 3737 src_stride, dst_stride, src, dst, filtering); | |
| 3738 } else if (8 * dst_width == src_width && 8 * dst_height == src_height) { | |
| 3739 // optimized, 1/8 | |
| 3740 ScalePlaneDown8(src_width, src_height, dst_width, dst_height, | |
| 3741 src_stride, dst_stride, src, dst, filtering); | |
| 3742 } else { | |
| 3743 // Arbitrary downsample | |
| 3744 ScalePlaneDown(src_width, src_height, dst_width, dst_height, | |
| 3745 src_stride, dst_stride, src, dst, filtering); | |
| 3746 } | |
| 3747 } else { | |
| 3748 // Arbitrary scale up and/or down. | |
| 3749 ScalePlaneAnySize(src_width, src_height, dst_width, dst_height, | |
| 3750 src_stride, dst_stride, src, dst, filtering); | |
| 3751 } | |
| 3752 } | |
| 3753 | |
| 3754 /** | |
| 3755 * Scale a plane. | |
| 3756 * | |
| 3757 * This function in turn calls a scaling function | |
| 3758 * suitable for handling the desired resolutions. | |
| 3759 * | |
| 3760 */ | |
| 3761 | |
| 3762 int I420Scale(const uint8* src_y, int src_stride_y, | |
| 3763 const uint8* src_u, int src_stride_u, | |
| 3764 const uint8* src_v, int src_stride_v, | |
| 3765 int src_width, int src_height, | |
| 3766 uint8* dst_y, int dst_stride_y, | |
| 3767 uint8* dst_u, int dst_stride_u, | |
| 3768 uint8* dst_v, int dst_stride_v, | |
| 3769 int dst_width, int dst_height, | |
| 3770 FilterModeEnum filtering) { | |
| 3771 if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || | |
| 3772 !dst_y || !dst_u || !dst_v || dst_width <= 0 || dst_height <= 0) { | |
| 3773 return -1; | |
| 3774 } | |
| 3775 // Negative height means invert the image. | |
| 3776 if (src_height < 0) { | |
| 3777 int halfheight; | |
| 3778 src_height = -src_height; | |
| 3779 halfheight = (src_height + 1) >> 1; | |
| 3780 src_y = src_y + (src_height - 1) * src_stride_y; | |
| 3781 src_u = src_u + (halfheight - 1) * src_stride_u; | |
| 3782 src_v = src_v + (halfheight - 1) * src_stride_v; | |
| 3783 src_stride_y = -src_stride_y; | |
| 3784 src_stride_u = -src_stride_u; | |
| 3785 src_stride_v = -src_stride_v; | |
| 3786 } | |
| 3787 { | |
| 3788 int src_halfwidth = (src_width + 1) >> 1; | |
| 3789 int src_halfheight = (src_height + 1) >> 1; | |
| 3790 int dst_halfwidth = (dst_width + 1) >> 1; | |
| 3791 int dst_halfheight = (dst_height + 1) >> 1; | |
| 3792 | |
| 3793 ScalePlane(src_y, src_stride_y, src_width, src_height, | |
| 3794 dst_y, dst_stride_y, dst_width, dst_height, | |
| 3795 filtering, use_reference_impl_); | |
| 3796 ScalePlane(src_u, src_stride_u, src_halfwidth, src_halfheight, | |
| 3797 dst_u, dst_stride_u, dst_halfwidth, dst_halfheight, | |
| 3798 filtering, use_reference_impl_); | |
| 3799 ScalePlane(src_v, src_stride_v, src_halfwidth, src_halfheight, | |
| 3800 dst_v, dst_stride_v, dst_halfwidth, dst_halfheight, | |
| 3801 filtering, use_reference_impl_); | |
| 3802 } | |
| 3803 return 0; | |
| 3804 } | |
| 3805 | |
| 3806 // Deprecated api | |
| 3807 int Scale(const uint8* src_y, const uint8* src_u, const uint8* src_v, | |
| 3808 int src_stride_y, int src_stride_u, int src_stride_v, | |
| 3809 int src_width, int src_height, | |
| 3810 uint8* dst_y, uint8* dst_u, uint8* dst_v, | |
| 3811 int dst_stride_y, int dst_stride_u, int dst_stride_v, | |
| 3812 int dst_width, int dst_height, | |
| 3813 int interpolate) { | |
| 3814 if (!src_y || !src_u || !src_v || src_width <= 0 || src_height == 0 || | |
| 3815 !dst_y || !dst_u || !dst_v || dst_width <= 0 || dst_height <= 0) { | |
| 3816 return -1; | |
| 3817 } | |
| 3818 // Negative height means invert the image. | |
| 3819 if (src_height < 0) { | |
| 3820 int halfheight; | |
| 3821 src_height = -src_height; | |
| 3822 halfheight = (src_height + 1) >> 1; | |
| 3823 src_y = src_y + (src_height - 1) * src_stride_y; | |
| 3824 src_u = src_u + (halfheight - 1) * src_stride_u; | |
| 3825 src_v = src_v + (halfheight - 1) * src_stride_v; | |
| 3826 src_stride_y = -src_stride_y; | |
| 3827 src_stride_u = -src_stride_u; | |
| 3828 src_stride_v = -src_stride_v; | |
| 3829 } | |
| 3830 { | |
| 3831 int src_halfwidth = (src_width + 1) >> 1; | |
| 3832 int src_halfheight = (src_height + 1) >> 1; | |
| 3833 int dst_halfwidth = (dst_width + 1) >> 1; | |
| 3834 int dst_halfheight = (dst_height + 1) >> 1; | |
| 3835 FilterModeEnum filtering = interpolate ? kFilterBox : kFilterNone; | |
| 3836 | |
| 3837 ScalePlane(src_y, src_stride_y, src_width, src_height, | |
| 3838 dst_y, dst_stride_y, dst_width, dst_height, | |
| 3839 filtering, use_reference_impl_); | |
| 3840 ScalePlane(src_u, src_stride_u, src_halfwidth, src_halfheight, | |
| 3841 dst_u, dst_stride_u, dst_halfwidth, dst_halfheight, | |
| 3842 filtering, use_reference_impl_); | |
| 3843 ScalePlane(src_v, src_stride_v, src_halfwidth, src_halfheight, | |
| 3844 dst_v, dst_stride_v, dst_halfwidth, dst_halfheight, | |
| 3845 filtering, use_reference_impl_); | |
| 3846 } | |
| 3847 return 0; | |
| 3848 } | |
| 3849 | |
| 3850 // Deprecated api | |
| 3851 int ScaleOffset(const uint8* src, int src_width, int src_height, | |
| 3852 uint8* dst, int dst_width, int dst_height, int dst_yoffset, | |
| 3853 int interpolate) { | |
| 3854 if (!src || src_width <= 0 || src_height <= 0 || | |
| 3855 !dst || dst_width <= 0 || dst_height <= 0 || dst_yoffset < 0 || | |
| 3856 dst_yoffset >= dst_height) { | |
| 3857 return -1; | |
| 3858 } | |
| 3859 dst_yoffset = dst_yoffset & ~1; // chroma requires offset to multiple of 2. | |
| 3860 { | |
| 3861 int src_halfwidth = (src_width + 1) >> 1; | |
| 3862 int src_halfheight = (src_height + 1) >> 1; | |
| 3863 int dst_halfwidth = (dst_width + 1) >> 1; | |
| 3864 int dst_halfheight = (dst_height + 1) >> 1; | |
| 3865 int aheight = dst_height - dst_yoffset * 2; // actual output height | |
| 3866 const uint8* const src_y = src; | |
| 3867 const uint8* const src_u = src + src_width * src_height; | |
| 3868 const uint8* const src_v = src + src_width * src_height + | |
| 3869 src_halfwidth * src_halfheight; | |
| 3870 uint8* dst_y = dst + dst_yoffset * dst_width; | |
| 3871 uint8* dst_u = dst + dst_width * dst_height + | |
| 3872 (dst_yoffset >> 1) * dst_halfwidth; | |
| 3873 uint8* dst_v = dst + dst_width * dst_height + dst_halfwidth * dst_halfheight + | |
| 3874 (dst_yoffset >> 1) * dst_halfwidth; | |
| 3875 return Scale(src_y, src_u, src_v, src_width, src_halfwidth, src_halfwidth, | |
| 3876 src_width, src_height, dst_y, dst_u, dst_v, dst_width, | |
| 3877 dst_halfwidth, dst_halfwidth, dst_width, aheight, interpolate); | |
| 3878 } | |
| 3879 } | |
| 3880 | |
| 3881 #ifdef __cplusplus | |
| 3882 } // extern "C" | |
| 3883 } // namespace libyuv | |
| 3884 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 341293003:
libvpx: Pull from upstream (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/libvpx/